Please wait...

Solution
Hindi language icon English language icon
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Which of the following statements is not correct regarding conservation laws?
Which of the following statements is not correct regarding conservation laws?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The increase in the height of the tower of height 200m to get its coverage range tripled is
The increase in the height of the tower of height 200m to get its coverage range tripled is
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
The value of g at a height equal to half the radius of the earth from the earth's surface is
The value of g at a height equal to half the radius of the earth from the earth's surface is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
The maximum and minimum distances of a comet from the sun are 1.4×1012m and 7×1010m. If its velocity nearest to the sun is 6×1014ms−1, what is its velocity in the farthest position?
(Assume the comet to be spherical)
The maximum and minimum distances of a comet from the sun are 1.4×1012m and 7×1010m. If its velocity nearest to the sun is 6×1014ms−1, what is its velocity in the farthest position?
(Assume the comet to be spherical)
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
The centre of mass of a system of two bodies of masses M and m,(M>m), separated by a distance d is
The centre of mass of a system of two bodies of masses M and m,(M>m), separated by a distance d is
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
A pump on the ground floor of a building can pump up water to fill the tank of 30m3 in 15‌min. If the tank is 40m above the ground, and the efficiency of the pump is 30%, the power consumed by the pump is (g=10ms−2)
A pump on the ground floor of a building can pump up water to fill the tank of 30m3 in 15‌min. If the tank is 40m above the ground, and the efficiency of the pump is 30%, the power consumed by the pump is (g=10ms−2)
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The resistance of a galvanometer is 2.5Ω and it requires 50‌mA for full scale deflection. The value of shunt resistance required to convert it into an ammeter of range 0 to 5A is
The resistance of a galvanometer is 2.5Ω and it requires 50‌mA for full scale deflection. The value of shunt resistance required to convert it into an ammeter of range 0 to 5A is
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Zener diode is used to regulate the voltage supply because, while using a Zener diode
Zener diode is used to regulate the voltage supply because, while using a Zener diode
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
In an inelastic collision, which of the following is true?
In an inelastic collision, which of the following is true?
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
If a change in current of 0.01A in one coil produces a change in magnetic flux of 2×10−2 weber in another coil, then the mutual inductance between coils is
If a change in current of 0.01A in one coil produces a change in magnetic flux of 2×10−2 weber in another coil, then the mutual inductance between coils is
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
An aeroplane is flying horizontally with a velocity of 360‌km‌h−1. The distance between the tips of the wings of the aeroplane is 50m. The vertical component of the earth's magnetic field is 4×10−4Wbm−2. The induced emf is
An aeroplane is flying horizontally with a velocity of 360‌km‌h−1. The distance between the tips of the wings of the aeroplane is 50m. The vertical component of the earth's magnetic field is 4×10−4Wbm−2. The induced emf is
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The inductance in a coil plays the same role as
The inductance in a coil plays the same role as
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
The mutual inductance between two coils depends upon
The mutual inductance between two coils depends upon
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
The normal magnetic flux passing through a coil changes with time according to the equation φ=6t2−5t+1. What is the magnitude of the induced current at t=0.253 s and resistance 10Ω ?
The normal magnetic flux passing through a coil changes with time according to the equation φ=6t2−5t+1. What is the magnitude of the induced current at t=0.253 s and resistance 10Ω ?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
For an electromagnetic wave, which of the following statements is true?
For an electromagnetic wave, which of the following statements is true?
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
If A is the angle of prism, r angle of refraction, then the condition for minimum deviation is
If A is the angle of prism, r angle of refraction, then the condition for minimum deviation is
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
A concave mirror forms an enlarged, erect, virtual image of an object, only when the object is placed
A concave mirror forms an enlarged, erect, virtual image of an object, only when the object is placed
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
A man stands symmetrically between two large plane mirrors fixed to two adjacent walls of a rectangular room. The number of images formed are
A man stands symmetrically between two large plane mirrors fixed to two adjacent walls of a rectangular room. The number of images formed are
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
A sinusoidal voltage of peak value 300V and an angular frequency ω=400 rads ‌−1 is applied to series L−C−R circuit, in which R=3Ω, L=20‌mH and C=625µF. The peak current in the circuit is
A sinusoidal voltage of peak value 300V and an angular frequency ω=400 rads ‌−1 is applied to series L−C−R circuit, in which R=3Ω, L=20‌mH and C=625µF. The peak current in the circuit is
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
A ray of light falls upon a 60∘ prism (µ=√2) and it suffers minimum deviation. The angle of incidence for this ray must be
A ray of light falls upon a 60∘ prism (µ=√2) and it suffers minimum deviation. The angle of incidence for this ray must be
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
A source of light of wavelength 5000Å is placed at one end of a table 2m long and 5‌mm above its flat well polished top. The fringe width of the interference bands seen on a sereen located at the end of the table is
A source of light of wavelength 5000Å is placed at one end of a table 2m long and 5‌mm above its flat well polished top. The fringe width of the interference bands seen on a sereen located at the end of the table is
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
A screen is placed 2m away from a narrow slit. It the first minimum lies 5‌mm from either side of the central maxima, when plane waves of wavelength 5×10−7m are used, the slit width is
A screen is placed 2m away from a narrow slit. It the first minimum lies 5‌mm from either side of the central maxima, when plane waves of wavelength 5×10−7m are used, the slit width is
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
A galaxy moves with respect to the earth, so that sodium line of 589.0‌nm is observed at 589.6‌nm. The speed of the galaxy is
A galaxy moves with respect to the earth, so that sodium line of 589.0‌nm is observed at 589.6‌nm. The speed of the galaxy is
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Newton's rings are observed normally in reflected light of wavelength 5000Å. The diameter of the 10th dark ring is 0.005m. The radius of curvature of the lens is
Newton's rings are observed normally in reflected light of wavelength 5000Å. The diameter of the 10th dark ring is 0.005m. The radius of curvature of the lens is
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The amount of energy required to separate a hydrogen atom into a proton and an electron is
The amount of energy required to separate a hydrogen atom into a proton and an electron is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
The energy equivalent of 1g of a substance is
The energy equivalent of 1g of a substance is
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Two small drops of mercury, each of radius r, coalesce to form a single large drop of radius R. The ratio of the total surface energies before and after the change is
Two small drops of mercury, each of radius r, coalesce to form a single large drop of radius R. The ratio of the total surface energies before and after the change is
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Find the energy equivalent of one atomic mass unit in joules and in MeV.
Find the energy equivalent of one atomic mass unit in joules and in MeV.
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20 . If the input signal is 0.01V, what is the output AC signal?
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20 . If the input signal is 0.01V, what is the output AC signal?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
A transistor works as an amplifier when,
A transistor works as an amplifier when,
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
In a common base circuit, collector base voltage changes by 0.6V and collector current changes by 0.02‌mA. Then, the output resistance is
In a common base circuit, collector base voltage changes by 0.6V and collector current changes by 0.02‌mA. Then, the output resistance is
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
A repeater in TV transmission is
A repeater in TV transmission is
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The waves suitable for transmission of radio signals are
The waves suitable for transmission of radio signals are
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
A wire of length 2m is made from 10cm3 of copper. A force F is applied so that its length increases by 2‌mm. Another wire of length 8m is made from the same volume of copper. If the force F is applied to it, its length will increase by
A wire of length 2m is made from 10cm3 of copper. A force F is applied so that its length increases by 2‌mm. Another wire of length 8m is made from the same volume of copper. If the force F is applied to it, its length will increase by
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
A tennis ball of mass m strikes a wall with a velocity v and retraces the same path. Calculate the change in momentum.
A tennis ball of mass m strikes a wall with a velocity v and retraces the same path. Calculate the change in momentum.
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
A monkey of mass 40‌kg climbs up a rope which can stand a maximum tension of 600N. The rope will break, when the monkey
A monkey of mass 40‌kg climbs up a rope which can stand a maximum tension of 600N. The rope will break, when the monkey
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
A shell of mass 20g is fired by a gun of mass 100‌kg. If the shell leaves the gun with a speed of 80ms−1, then the speed of recoil of the gun is
A shell of mass 20g is fired by a gun of mass 100‌kg. If the shell leaves the gun with a speed of 80ms−1, then the speed of recoil of the gun is
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Two boys are standing at ends A and B of a ground where AB=200m. The boy at B starts running in a direction perpendicular to AB with a speed of 6ms−1. The boy at A starts simultaneously with a velocity of 10ms−1 and catches the other at time, t where the time, t is
Two boys are standing at ends A and B of a ground where AB=200m. The boy at B starts running in a direction perpendicular to AB with a speed of 6ms−1. The boy at A starts simultaneously with a velocity of 10ms−1 and catches the other at time, t where the time, t is
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
A car covers the first half distance between two places at 40‌kmph and the other half at 60‌kmph. The average speed of the car is
A car covers the first half distance between two places at 40‌kmph and the other half at 60‌kmph. The average speed of the car is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
The dimensions of universal gravitational constant is
The dimensions of universal gravitational constant is
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Which two of the following quantities are dimensionally equivalent?
(i) Force
(ii) Pressure
(iii) Young's modulus
(iv) Energy
Which two of the following quantities are dimensionally equivalent?
(i) Force
(ii) Pressure
(iii) Young's modulus
(iv) Energy
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
The temperature of an object is 60∘C. Its value in Fahrenheit scale is
The temperature of an object is 60∘C. Its value in Fahrenheit scale is
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
A pan filled with hot food cools from 94∘C to 86∘C in 2‌min, when the room temperature is 20∘C. The time taken for the food to cool from 86∘C to 74∘C will be
A pan filled with hot food cools from 94∘C to 86∘C in 2‌min, when the room temperature is 20∘C. The time taken for the food to cool from 86∘C to 74∘C will be
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
A system containing a ball is oscillating on a frictionless horizontal plan The position of the mass when its potential energy and its kinetic energy both are equal, is (let A is the amplitude of oscillation)
A system containing a ball is oscillating on a frictionless horizontal plan The position of the mass when its potential energy and its kinetic energy both are equal, is (let A is the amplitude of oscillation)
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The universal gas law (‌
pV
T
=. constant ) is applicable to
The universal gas law (‌
pV
T
=. constant ) is applicable to
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
On an average, a human heart is found to beat 72 times a minute. Its frequency and period are
On an average, a human heart is found to beat 72 times a minute. Its frequency and period are
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
A hospital uses an ultrasonic scanner to locate tumors in a tissue. The operating frequency of the scanner is 4.2‌MHz. The speed of sound in a tissue is 1.7‌km‌ s−1. The wavelength of sound in the tissue is
A hospital uses an ultrasonic scanner to locate tumors in a tissue. The operating frequency of the scanner is 4.2‌MHz. The speed of sound in a tissue is 1.7‌km‌ s−1. The wavelength of sound in the tissue is
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
A policeman on duty detects a drop of 15% in the pitch of the hom of a motor car as it crosses him. If the velocity of sound is 330ms−1, then calculate the speed of the car.
A policeman on duty detects a drop of 15% in the pitch of the hom of a motor car as it crosses him. If the velocity of sound is 330ms−1, then calculate the speed of the car.
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
An electric dipole placed in a non-uniform electric field experiences
An electric dipole placed in a non-uniform electric field experiences
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
For a polar molecule, which of the following statements is true?
For a polar molecule, which of the following statements is true?
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
A 10‌mF capacitor has been charged to a potential of 100V. Suddenly if it explodes, the energy given out is
A 10‌mF capacitor has been charged to a potential of 100V. Suddenly if it explodes, the energy given out is
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
The region between the parallel plates of capacitor is filled with parallel layers of air and paper (of dielectric constant 4). The space between the plates is 1‌mm and the thickness of paper is 0.75‌mm. The ratio of the voltage across air and paper is
The region between the parallel plates of capacitor is filled with parallel layers of air and paper (of dielectric constant 4). The space between the plates is 1‌mm and the thickness of paper is 0.75‌mm. The ratio of the voltage across air and paper is
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
Two copper wires, one of length 1m and the other of length 9m have the same resistance. The diameters are in the ratio
Two copper wires, one of length 1m and the other of length 9m have the same resistance. The diameters are in the ratio
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
Which of the following is a correct statement?
Which of the following is a correct statement?
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
A proton and an α-particle are projected with the same kinetic energy at right angles to a uniform magnetic field. The ratio of the radii of their paths is
A proton and an α-particle are projected with the same kinetic energy at right angles to a uniform magnetic field. The ratio of the radii of their paths is
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
The magnetic properties of a magnet is lost at its
The magnetic properties of a magnet is lost at its
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Electromagnets are made of soft iron because soft iron has
Electromagnets are made of soft iron because soft iron has
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Three charges −q,+Q and −q are placed at equal distances along a straight line. If the total PE of the system is zero, then the ratio
Q
q
 becomes
Three charges −q,+Q and −q are placed at equal distances along a straight line. If the total PE of the system is zero, then the ratio
Q
q
 becomes
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
The equivalent resistance of the circuit between A and B is

The equivalent resistance of the circuit between A and B is

Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
The TV signals have a bandwidth of 3.7‌MHz. The number of TV channels that can be accommodated with a band of 3700‌GHz is
The TV signals have a bandwidth of 3.7‌MHz. The number of TV channels that can be accommodated with a band of 3700‌GHz is
Q.61 Correct
Q.61 In-correct
Q.61 Unattempt
Density of 3M solution of NaCl is 1.25g∕mL. The mass of the solvent in the solution is
Density of 3M solution of NaCl is 1.25g∕mL. The mass of the solvent in the solution is
Q.62 Correct
Q.62 In-correct
Q.62 Unattempt
An orbital with n=3,l=1 is designated as
An orbital with n=3,l=1 is designated as
Q.63 Correct
Q.63 In-correct
Q.63 Unattempt
A 150 watt bulb emits light of wavelength 6600Å and only 8% of the energy is emitted as light. How many photons are emitted by the bulb per second?
A 150 watt bulb emits light of wavelength 6600Å and only 8% of the energy is emitted as light. How many photons are emitted by the bulb per second?
Q.64 Correct
Q.64 In-correct
Q.64 Unattempt
In the following sets of ions, which one is not isoelectronic with the rest of the species?
O2−,F−,Na,Mg2+,Al3+,Ne
In the following sets of ions, which one is not isoelectronic with the rest of the species?
O2−,F−,Na,Mg2+,Al3+,Ne
Q.65 Correct
Q.65 In-correct
Q.65 Unattempt
For all gases, at any given pressure, the graph of volume cs temperature (in celsius) is a straight line. This graph is called
For all gases, at any given pressure, the graph of volume cs temperature (in celsius) is a straight line. This graph is called
Q.66 Correct
Q.66 In-correct
Q.66 Unattempt
Atomic numbers of vanadium, chromium, nickel and iron are 23,24,28 and 26 respectively. Which one of these is expected to have the highest second ionisation enthalpy?
Atomic numbers of vanadium, chromium, nickel and iron are 23,24,28 and 26 respectively. Which one of these is expected to have the highest second ionisation enthalpy?
Q.67 Correct
Q.67 In-correct
Q.67 Unattempt
Which of these represents the correct order of their increasing bond order?
Which of these represents the correct order of their increasing bond order?
Q.68 Correct
Q.68 In-correct
Q.68 Unattempt
Pick up the incorrect statement.
Pick up the incorrect statement.
Q.69 Correct
Q.69 In-correct
Q.69 Unattempt
The mole fraction of dioxygen in a neon-dioxygen mixture is 0.18 . If the total pressure of the mixture is 25‌bar, the partial pressure of neon in the mixture would be
The mole fraction of dioxygen in a neon-dioxygen mixture is 0.18 . If the total pressure of the mixture is 25‌bar, the partial pressure of neon in the mixture would be
Q.70 Correct
Q.70 In-correct
Q.70 Unattempt
Standard molar enthalpies of formation of CaCO3(s),CaO(s) and CO2(g) are
−1206.92‌kJ‌mol−1,−635.09‌kJ‌mol−1 and
−393.51‌kJ‌mol−1 respectively. The ∆rH, for decomposition of CaCO3(s) is
Standard molar enthalpies of formation of CaCO3(s),CaO(s) and CO2(g) are
−1206.92‌kJ‌mol−1,−635.09‌kJ‌mol−1 and
−393.51‌kJ‌mol−1 respectively. The ∆rH, for decomposition of CaCO3(s) is
Q.71 Correct
Q.71 In-correct
Q.71 Unattempt
∆rG∘ for the conversion of O2 to ozone, ‌
3
2
O2(g)→O3(g) at 298K is (Kp. for this conversion is 1×10−29 )
∆rG∘ for the conversion of O2 to ozone, ‌
3
2
O2(g)→O3(g) at 298K is (Kp. for this conversion is 1×10−29 )
Q.72 Correct
Q.72 In-correct
Q.72 Unattempt
In which of the following case, does the reaction go farthest to completion if
In which of the following case, does the reaction go farthest to completion if
Q.73 Correct
Q.73 In-correct
Q.73 Unattempt
One mole of PCl5 is heated in a closed 2dm3 vessel. At equilibrium 40%PCl5 is dissociate. Calculate the equilibrium constant.
One mole of PCl5 is heated in a closed 2dm3 vessel. At equilibrium 40%PCl5 is dissociate. Calculate the equilibrium constant.
Q.74 Correct
Q.74 In-correct
Q.74 Unattempt
The non-existence of PbI4 and PbBr4 is due to
The non-existence of PbI4 and PbBr4 is due to
Q.75 Correct
Q.75 In-correct
Q.75 Unattempt
Which of the following species do not show disproportionation reaction?
Which of the following species do not show disproportionation reaction?
Q.76 Correct
Q.76 In-correct
Q.76 Unattempt
Sodium dissolves in liquid NH3 to give a deep blue solution. This is due to
Sodium dissolves in liquid NH3 to give a deep blue solution. This is due to
Q.77 Correct
Q.77 In-correct
Q.77 Unattempt
Fullerene with formula C60 has a structure where every carbon atom is
Fullerene with formula C60 has a structure where every carbon atom is
Q.78 Correct
Q.78 In-correct
Q.78 Unattempt
Maleic acid and fumaric acid are
Maleic acid and fumaric acid are
Q.79 Correct
Q.79 In-correct
Q.79 Unattempt
The IUPAC name of tertiary butyl chloride is
The IUPAC name of tertiary butyl chloride is
Q.80 Correct
Q.80 In-correct
Q.80 Unattempt
The compound which on ozonolysis produces a mixture of propanone and ethanal is
The compound which on ozonolysis produces a mixture of propanone and ethanal is
Q.81 Correct
Q.81 In-correct
Q.81 Unattempt
When 2-bromopentane is heated with alcoholic solution of potassium hydroxide, the major product obtained is
When 2-bromopentane is heated with alcoholic solution of potassium hydroxide, the major product obtained is
Q.82 Correct
Q.82 In-correct
Q.82 Unattempt
Rain water is called acid rain when its pH
Rain water is called acid rain when its pH
Q.83 Correct
Q.83 In-correct
Q.83 Unattempt
Schottky defect in crystals is observed when
Schottky defect in crystals is observed when
Q.84 Correct
Q.84 In-correct
Q.84 Unattempt
A crystalline solid has A−ions at the corners and face centres, whereas B+ions are at the body centre and edge centres of the unit cell. The simplest formula of the compound will be
A crystalline solid has A−ions at the corners and face centres, whereas B+ions are at the body centre and edge centres of the unit cell. The simplest formula of the compound will be
Q.85 Correct
Q.85 In-correct
Q.85 Unattempt
The radius of an atom is 300‌pm. If it crystallises in a face-centered cubic lattice, the length of the edge of the unit cell is
The radius of an atom is 300‌pm. If it crystallises in a face-centered cubic lattice, the length of the edge of the unit cell is
Q.86 Correct
Q.86 In-correct
Q.86 Unattempt
When the concentration is expressed as the number of moles of solute per kilogram of the solvent, it is known as
When the concentration is expressed as the number of moles of solute per kilogram of the solvent, it is known as
Q.87 Correct
Q.87 In-correct
Q.87 Unattempt
van't Hoff factors of equimolal solutions of sodium chloride, barium chloride and glucose in water are
van't Hoff factors of equimolal solutions of sodium chloride, barium chloride and glucose in water are
Q.88 Correct
Q.88 In-correct
Q.88 Unattempt
A one molal solution of sodium chloride in water has the same boiling point as
A one molal solution of sodium chloride in water has the same boiling point as
Q.89 Correct
Q.89 In-correct
Q.89 Unattempt
Vapour pressure of water at 293K is 17.535‌mm‌Hg. The vapour pressure of water at 293K containing 25g of glucose dissolved in 450g of water is
Vapour pressure of water at 293K is 17.535‌mm‌Hg. The vapour pressure of water at 293K containing 25g of glucose dissolved in 450g of water is
Q.90 Correct
Q.90 In-correct
Q.90 Unattempt
In a electrochemical cell, the reaction will be feasible when
In a electrochemical cell, the reaction will be feasible when
Q.91 Correct
Q.91 In-correct
Q.91 Unattempt
The standard emf of the cell Zn‌|Zn2+|‌|Ag+|‌Ag is 1.56V. If the standard reduction potential of Ag is 0.8V, the standard oxidation potential of Zn is
The standard emf of the cell Zn‌|Zn2+|‌|Ag+|‌Ag is 1.56V. If the standard reduction potential of Ag is 0.8V, the standard oxidation potential of Zn is
Q.92 Correct
Q.92 In-correct
Q.92 Unattempt
The molar conductivities of NaOH,NaCl and BaCl2 at infinite dilution are 2.481×10−2Sm2mol−1
1.265×10−2Sm2mol−1 and
2.800×10−2Sm2mol−1 respectively. The molar conductivity of Ba(OH)2 at infinite dilution will be
The molar conductivities of NaOH,NaCl and BaCl2 at infinite dilution are 2.481×10−2Sm2mol−1
1.265×10−2Sm2mol−1 and
2.800×10−2Sm2mol−1 respectively. The molar conductivity of Ba(OH)2 at infinite dilution will be
Q.93 Correct
Q.93 In-correct
Q.93 Unattempt
The rate of a chemical reaction doubles for every 10∘C rise in temperature. If the temperature increases by 60∘C, the rate of reaction increases
The rate of a chemical reaction doubles for every 10∘C rise in temperature. If the temperature increases by 60∘C, the rate of reaction increases
Q.94 Correct
Q.94 In-correct
Q.94 Unattempt
An endothermic reaction, A→B has an activation energy as x‌kJ∕mol. If the energy change of the reaction is y‌kJ, the activation energy of the reverse reaction is
An endothermic reaction, A→B has an activation energy as x‌kJ∕mol. If the energy change of the reaction is y‌kJ, the activation energy of the reverse reaction is
Q.95 Correct
Q.95 In-correct
Q.95 Unattempt
aP+bQ→ products, when [P] is doubled keeping [Q] constant and rate increases 2 times, when [P] is constant and [Q] is doubled and rate increases four times. The overall order is
aP+bQ→ products, when [P] is doubled keeping [Q] constant and rate increases 2 times, when [P] is constant and [Q] is doubled and rate increases four times. The overall order is
Q.96 Correct
Q.96 In-correct
Q.96 Unattempt
Semiconductors of very high purity are obtained by
Semiconductors of very high purity are obtained by
Q.97 Correct
Q.97 In-correct
Q.97 Unattempt
Sodium cyanide is added as a depressant in the froth floatation process when the ore contains a mixture of ZnS and PbS. This is because
Sodium cyanide is added as a depressant in the froth floatation process when the ore contains a mixture of ZnS and PbS. This is because
Q.98 Correct
Q.98 In-correct
Q.98 Unattempt
Solid A reacts with strong NaOH(aq) liberating a foul smelling gas B which spontaneously burn in air giving smoky rings. A and B are respectively.
Solid A reacts with strong NaOH(aq) liberating a foul smelling gas B which spontaneously burn in air giving smoky rings. A and B are respectively.
Q.99 Correct
Q.99 In-correct
Q.99 Unattempt
SO2+2H2S→3S+2H2O. This equation represents preparation of sulphur sol by
SO2+2H2S→3S+2H2O. This equation represents preparation of sulphur sol by
Q.100 Correct
Q.100 In-correct
Q.100 Unattempt
Which of the following inert gas compounds is not formed?
Which of the following inert gas compounds is not formed?
Q.101 Correct
Q.101 In-correct
Q.101 Unattempt
Nitrogen shows maximum covalency of 4 whereas, other heavier elements of the group show higher covalency because,
Nitrogen shows maximum covalency of 4 whereas, other heavier elements of the group show higher covalency because,
Q.102 Correct
Q.102 In-correct
Q.102 Unattempt
.The photographic industry relies on the special light sensitive properties of
.The photographic industry relies on the special light sensitive properties of
Q.103 Correct
Q.103 In-correct
Q.103 Unattempt
In acidic medium, potassium permanganate oxidises oxalic acid to
In acidic medium, potassium permanganate oxidises oxalic acid to
Q.104 Correct
Q.104 In-correct
Q.104 Unattempt
The complex [PtCl2(en)2]2+ ion shows
The complex [PtCl2(en)2]2+ ion shows
Q.105 Correct
Q.105 In-correct
Q.105 Unattempt
The complex [Ag(NH3)2][Ag(CN)2] has the
IUPAC name
The complex [Ag(NH3)2][Ag(CN)2] has the
IUPAC name
Q.106 Correct
Q.106 In-correct
Q.106 Unattempt
Molar conductance of a complex of cobalt is zero. Then its structure would be
Molar conductance of a complex of cobalt is zero. Then its structure would be
Q.107 Correct
Q.107 In-correct
Q.107 Unattempt
The reaction, CH3CH2I+KOH(aq)→
CH3CH2‌OH+KI is classified as
The reaction, CH3CH2I+KOH(aq)→
CH3CH2‌OH+KI is classified as
Q.108 Correct
Q.108 In-correct
Q.108 Unattempt
For SN1 reaction, the order of reactivity of haloalkanes is
For SN1 reaction, the order of reactivity of haloalkanes is
Q.109 Correct
Q.109 In-correct
Q.109 Unattempt
The major product obtained when chlorobenzene is nitrated with
HNO3+ con
The major product obtained when chlorobenzene is nitrated with
HNO3+ con
Q.110 Correct
Q.110 In-correct
Q.110 Unattempt
The unstable intermediate dichlorocarbene [:CCl2] is formed during
The unstable intermediate dichlorocarbene [:CCl2] is formed during
Q.111 Correct
Q.111 In-correct
Q.111 Unattempt
Phenols are highly acidic compared to alcohols due to
Phenols are highly acidic compared to alcohols due to
Q.112 Correct
Q.112 In-correct
Q.112 Unattempt
Arrangement of following compounds based on their boiling points in the increasing order. n-butane, 1-butanol, ethoxyethane and 1-propanol will be
Arrangement of following compounds based on their boiling points in the increasing order. n-butane, 1-butanol, ethoxyethane and 1-propanol will be
Q.113 Correct
Q.113 In-correct
Q.113 Unattempt
Among 2-chloropropanoic acid, 3-chloro-propanoic acid, 2-2-dichloroacetic acid and propanoic acid the Ka values will be in the order,
Among 2-chloropropanoic acid, 3-chloro-propanoic acid, 2-2-dichloroacetic acid and propanoic acid the Ka values will be in the order,
Q.114 Correct
Q.114 In-correct
Q.114 Unattempt
A reaction between a carbonyl compound and a Grignard reagent is termed as
A reaction between a carbonyl compound and a Grignard reagent is termed as
Q.115 Correct
Q.115 In-correct
Q.115 Unattempt
Ethanal is treated with a primary alcohol in presence of HCl gas. The reaction is known as
Ethanal is treated with a primary alcohol in presence of HCl gas. The reaction is known as
Q.116 Correct
Q.116 In-correct
Q.116 Unattempt
CH3−CN‌
NaNC4H5‌OH
→
‌A‌
HNO2
→
‌B‌
→
573K
C
here C is
CH3−CN‌
NaNC4H5‌OH
→
‌A‌
HNO2
→
‌B‌
→
573K
C
here C is
Q.117 Correct
Q.117 In-correct
Q.117 Unattempt
In nucleic acids the nucleotides are linked by
In nucleic acids the nucleotides are linked by
Q.118 Correct
Q.118 In-correct
Q.118 Unattempt
Amino acids exist as zwitter ions at
Amino acids exist as zwitter ions at
Q.119 Correct
Q.119 In-correct
Q.119 Unattempt
Which one of the following is an addition polymer?
Which one of the following is an addition polymer?
Q.120 Correct
Q.120 In-correct
Q.120 Unattempt
Among the following compounds, the only one which is not an artificial sweetening agent is
Among the following compounds, the only one which is not an artificial sweetening agent is
Q.121 Correct
Q.121 In-correct
Q.121 Unattempt
Which of the following is an empty set?
Which of the following is an empty set?
Q.122 Correct
Q.122 In-correct
Q.122 Unattempt
The number of proper subsets of a set having n+1 elements is
The number of proper subsets of a set having n+1 elements is
Q.123 Correct
Q.123 In-correct
Q.123 Unattempt
The domain of the function y=√x−2+√1−x is
The domain of the function y=√x−2+√1−x is
Q.124 Correct
Q.124 In-correct
Q.124 Unattempt
If A={1,2,3,4}, then which one of the following is reflexive?
If A={1,2,3,4}, then which one of the following is reflexive?
Q.125 Correct
Q.125 In-correct
Q.125 Unattempt
If f(x)=‌
2x−3
3x+4
, then f−1(‌
−4
3
)=
If f(x)=‌
2x−3
3x+4
, then f−1(‌
−4
3
)=
Q.126 Correct
Q.126 In-correct
Q.126 Unattempt
If f:[0,∞)→[2,∞) is given by f(x)=x+‌
1
x
, then f−1(x) equals
If f:[0,∞)→[2,∞) is given by f(x)=x+‌
1
x
, then f−1(x) equals
Q.127 Correct
Q.127 In-correct
Q.127 Unattempt
The value of ‌
tan‌330∘‌ ‌s‌e‌c‌420∘‌s‌i‌n‌300∘
tan‌135∘‌s‌i‌n‌210∘ sec315∘
 is equal to
The value of ‌
tan‌330∘‌ ‌s‌e‌c‌420∘‌s‌i‌n‌300∘
tan‌135∘‌s‌i‌n‌210∘ sec315∘
 is equal to
Q.128 Correct
Q.128 In-correct
Q.128 Unattempt
.If sin‌(120−A)=sin‌(120−B) and 0<A,B<π then all values of A and B are given by
.If sin‌(120−A)=sin‌(120−B) and 0<A,B<π then all values of A and B are given by
Q.129 Correct
Q.129 In-correct
Q.129 Unattempt
. If cot−1‌
1
5
+cot−1‌
1
3
−cot−1‌
4
7
=cot−1x, then x is equal to
. If cot−1‌
1
5
+cot−1‌
1
3
−cot−1‌
4
7
=cot−1x, then x is equal to
Q.130 Correct
Q.130 In-correct
Q.130 Unattempt
. If 1+i=(x+iy)(u+ic), then tan−1(‌
y
x
)+cot−1(‌
u
x
) has the value
. If 1+i=(x+iy)(u+ic), then tan−1(‌
y
x
)+cot−1(‌
u
x
) has the value
Q.131 Correct
Q.131 In-correct
Q.131 Unattempt
For a natural number n, which one is the correct statement?
For a natural number n, which one is the correct statement?
Q.132 Correct
Q.132 In-correct
Q.132 Unattempt
If a complex number lies in the III quadrant. Find the quadrant in which its conjugate lies.
If a complex number lies in the III quadrant. Find the quadrant in which its conjugate lies.
Q.133 Correct
Q.133 In-correct
Q.133 Unattempt
If β satisfies the inequation x2−x−6>0, then a value exists for
If β satisfies the inequation x2−x−6>0, then a value exists for
Q.134 Correct
Q.134 In-correct
Q.134 Unattempt
If ‌56Pr+6:‌54Pr+3=30800:1, then
If ‌56Pr+6:‌54Pr+3=30800:1, then
Q.135 Correct
Q.135 In-correct
Q.135 Unattempt
If the coefficient of x5 and x6 in (2+‌
x
3
)n are equal, then n is
If the coefficient of x5 and x6 in (2+‌
x
3
)n are equal, then n is
Q.136 Correct
Q.136 In-correct
Q.136 Unattempt
The term independent of x in [√(‌
x
3
)+√(‌
3
2x2
)]10 is
The term independent of x in [√(‌
x
3
)+√(‌
3
2x2
)]10 is
Q.137 Correct
Q.137 In-correct
Q.137 Unattempt
The sum of the series ‌
12
1⋅2
+‌
12+22
2⋅3
+‌
12+22+32
3⋅4
+... upto 20 terms is
The sum of the series ‌
12
1⋅2
+‌
12+22
2⋅3
+‌
12+22+32
3⋅4
+... upto 20 terms is
Q.138 Correct
Q.138 In-correct
Q.138 Unattempt
The angle between lines √3x+y=1 and x+√3y=1 is
The angle between lines √3x+y=1 and x+√3y=1 is
Q.139 Correct
Q.139 In-correct
Q.139 Unattempt
- If a is a parameter then an equation of a family of lines having the sum of the intercepts on axes equal to 7 is
- If a is a parameter then an equation of a family of lines having the sum of the intercepts on axes equal to 7 is
Q.140 Correct
Q.140 In-correct
Q.140 Unattempt
The equation of the ellipse whose centre is at the origin and the X-axis is major axis, which passes through the points (−3,1) and (2,−2) is
The equation of the ellipse whose centre is at the origin and the X-axis is major axis, which passes through the points (−3,1) and (2,−2) is
Q.141 Correct
Q.141 In-correct
Q.141 Unattempt
The equation of the lines joining the vertex of the parabola y2=6x to the point on it which have abscissa 24 are
The equation of the lines joining the vertex of the parabola y2=6x to the point on it which have abscissa 24 are
Q.142 Correct
Q.142 In-correct
Q.142 Unattempt
Find the distance of a point (1,2,3) from the plane 3y+4z+4=0.
Find the distance of a point (1,2,3) from the plane 3y+4z+4=0.
Q.143 Correct
Q.143 In-correct
Q.143 Unattempt
AB and CD are two line segments, where A(2,3,0),B(6,9,0),C(−6,−9,0). P and Q are mid-point of AB and CD, respectively and L is the mid-point of PQ. Find the distance of L from the plane 3x+4z+25=0
AB and CD are two line segments, where A(2,3,0),B(6,9,0),C(−6,−9,0). P and Q are mid-point of AB and CD, respectively and L is the mid-point of PQ. Find the distance of L from the plane 3x+4z+25=0
Q.144 Correct
Q.144 In-correct
Q.144 Unattempt
Determine the plane through the intersection of the planes x+2y+3z−4=0 and 2x+y−z+5=0 and perpendicular to the plane 5x+3y+6z+8=0
Determine the plane through the intersection of the planes x+2y+3z−4=0 and 2x+y−z+5=0 and perpendicular to the plane 5x+3y+6z+8=0
Q.145 Correct
Q.145 In-correct
Q.145 Unattempt
lim
x→0
‌
xax−x
1−cos‌x
 is equal to
lim
x→0
‌
xax−x
1−cos‌x
 is equal to
Q.146 Correct
Q.146 In-correct
Q.146 Unattempt
lim
x→0
‌
xax−x
1−cos‌x
 is equal to
lim
x→0
‌
xax−x
1−cos‌x
 is equal to
Q.147 Correct
Q.147 In-correct
Q.147 Unattempt
If y=tan‌x, then ‌
d2y
dx2
=
If y=tan‌x, then ‌
d2y
dx2
=
Q.148 Correct
Q.148 In-correct
Q.148 Unattempt
If y=tan−1(‌
a−x
1+ax
), then ‌
dy
dx
=
If y=tan−1(‌
a−x
1+ax
), then ‌
dy
dx
=
Q.149 Correct
Q.149 In-correct
Q.149 Unattempt
. If f(x)={
[x]+[−x],x≠2
Kx=2
, then f(x) is continuous at x=2, provided K is equal to
. If f(x)={
[x]+[−x],x≠2
Kx=2
, then f(x) is continuous at x=2, provided K is equal to
Q.150 Correct
Q.150 In-correct
Q.150 Unattempt
The curve x2−xy+y2=27 has tangents parallel to X-axis at
The curve x2−xy+y2=27 has tangents parallel to X-axis at
Q.151 Correct
Q.151 In-correct
Q.151 Unattempt
The point on the circle x2+y2=2 at the abscissa and ordinate increase at the same ate is
The point on the circle x2+y2=2 at the abscissa and ordinate increase at the same ate is
Q.152 Correct
Q.152 In-correct
Q.152 Unattempt
A spherical balloon is being inflated at the rate of 35‌cm∕min. When its radius is 7‌cm, its surface area increases at the rate of
A spherical balloon is being inflated at the rate of 35‌cm∕min. When its radius is 7‌cm, its surface area increases at the rate of
Q.153 Correct
Q.153 In-correct
Q.153 Unattempt
∫ex(cos‌x−sin‌x)‌dx is equal to
∫ex(cos‌x−sin‌x)‌dx is equal to
Q.154 Correct
Q.154 In-correct
Q.154 Unattempt
The solution of (2x−10y3)‌
dy
dx
+y=0 is
The solution of (2x−10y3)‌
dy
dx
+y=0 is
Q.155 Correct
Q.155 In-correct
Q.155 Unattempt
The solution of (x+y)2(x‌
dy
dx
+y)=xy(1+‌
dy
dx
) is
The solution of (x+y)2(x‌
dy
dx
+y)=xy(1+‌
dy
dx
) is
Q.156 Correct
Q.156 In-correct
Q.156 Unattempt
Find sin‌θ, if θ is the angle between the vectors 3
^
i
+
^
j
+2
^
k
 and
^
i
+
^
j
+2
^
k
.
Find sin‌θ, if θ is the angle between the vectors 3
^
i
+
^
j
+2
^
k
 and
^
i
+
^
j
+2
^
k
.
Q.157 Correct
Q.157 In-correct
Q.157 Unattempt
If a and b are two vectors of magnitude 2 , each inclined at an ∠60∘, then angle between a and a+b is
If a and b are two vectors of magnitude 2 , each inclined at an ∠60∘, then angle between a and a+b is
Q.158 Correct
Q.158 In-correct
Q.158 Unattempt
If [
−25
3−1
][
x
y
]=[
12
34
][
3
−1
], then (x,y) is
If [
−25
3−1
][
x
y
]=[
12
34
][
3
−1
], then (x,y) is
Q.159 Correct
Q.159 In-correct
Q.159 Unattempt
If the product of the matrix B=[
264
101
−11−1
] with a matrix A has the inverse C=[
−101
113
202
], then A−1 equals
If the product of the matrix B=[
264
101
−11−1
] with a matrix A has the inverse C=[
−101
113
202
], then A−1 equals
Q.160 Correct
Q.160 In-correct
Q.160 Unattempt
A and B are two matrices such that AB=B, BA=A, then A2+B2=
A and B are two matrices such that AB=B, BA=A, then A2+B2=
Q.161 Correct
Q.161 In-correct
Q.161 Unattempt
If α,β,γ are the roots of x3+a2x+b=0, then the value of |
αβγ
βγα
γαβ
| is
If α,β,γ are the roots of x3+a2x+b=0, then the value of |
αβγ
βγα
γαβ
| is
Q.162 Correct
Q.162 In-correct
Q.162 Unattempt
The value of |
444
(a+a−1)2(b+b−1)2(c+c−1)2
(a−a−1)2(b−b−1)2(c−c−1)2
| is
The value of |
444
(a+a−1)2(b+b−1)2(c+c−1)2
(a−a−1)2(b−b−1)2(c−c−1)2
| is
Q.163 Correct
Q.163 In-correct
Q.163 Unattempt
Given that, P(A)=0.1,P(B∣A)=0.6 and P(B∣AC)=0.3 what is P(A∣B)= ?
Given that, P(A)=0.1,P(B∣A)=0.6 and P(B∣AC)=0.3 what is P(A∣B)= ?
Q.164 Correct
Q.164 In-correct
Q.164 Unattempt
A card is picked at random from a pack of cards. Given that the picked card is a queen, what is the probability that it is a spade?
A card is picked at random from a pack of cards. Given that the picked card is a queen, what is the probability that it is a spade?
Q.165 Correct
Q.165 In-correct
Q.165 Unattempt
If the occurrence of an event A implies that occurrence of an event B, the P(AC∩BC) is equal to
If the occurrence of an event A implies that occurrence of an event B, the P(AC∩BC) is equal to
Q.166 Correct
Q.166 In-correct
Q.166 Unattempt
A certain item is manufactured by 3 factory F1,F2 and F3 with 30% of item made in F1,20% in F2 and 50% in F3. It is found that 2% of the items produced by F1. 3\% of the items produced by F2 and 4% of the items produced by F3 are defective. Suppose that an items selected at random from the stock is found defective. What is the probability that the item came from F1 ?
A certain item is manufactured by 3 factory F1,F2 and F3 with 30% of item made in F1,20% in F2 and 50% in F3. It is found that 2% of the items produced by F1. 3\% of the items produced by F2 and 4% of the items produced by F3 are defective. Suppose that an items selected at random from the stock is found defective. What is the probability that the item came from F1 ?
Q.167 Correct
Q.167 In-correct
Q.167 Unattempt
Ram obtained 60 and 85 in first two unit tests. The minimum marks he should get in the third test to have an average of atleast 55 marks is
Ram obtained 60 and 85 in first two unit tests. The minimum marks he should get in the third test to have an average of atleast 55 marks is
Q.168 Correct
Q.168 In-correct
Q.168 Unattempt
Coefficient of variation of two distributions are 60 and 70 , and their standard deviation are 21 and 16 respectively. What are their arithmetic means?
Coefficient of variation of two distributions are 60 and 70 , and their standard deviation are 21 and 16 respectively. What are their arithmetic means?
Q.169 Correct
Q.169 In-correct
Q.169 Unattempt
Consider an experiment E in which a box contains 10 identical tickets numbered 1 to 10 and 2 tickets are drawn at random from the box. What is the probability that both the tickets have even number on them?
Consider an experiment E in which a box contains 10 identical tickets numbered 1 to 10 and 2 tickets are drawn at random from the box. What is the probability that both the tickets have even number on them?
Q.170 Correct
Q.170 In-correct
Q.170 Unattempt
Which of the following is not a logical statement?
Which of the following is not a logical statement?
Q.171 Correct
Q.171 In-correct
Q.171 Unattempt
A mathematical model written to construct a maximum area rectangle out of a thread of length 10‌cm is given by maximise llb.
Such that 2(l+b)=10,l,b>0, where l and b are the length and breadth of the rectangle. This is not a linear programming problem because
A mathematical model written to construct a maximum area rectangle out of a thread of length 10cm is given by maximise llb.
Such that 2(l+b)=10,l,b>0, where l and b are the length and breadth of the rectangle. This is not a linear programming problem because
Q.172 Correct
Q.172 In-correct
Q.172 Unattempt
Laksmi wants to buy few bangles and ear drops. Each bangle costs ₹5 and each ear drop costs ₹ 10. She should buy atleast 6 bangles and atmost 2 ear drops. If she buys x bangles and y ear drops with minimum expenditure, then the formulation for this linear programming is
Laksmi wants to buy few bangles and ear drops. Each bangle costs ₹5 and each ear drop costs ₹ 10. She should buy atleast 6 bangles and atmost 2 ear drops. If she buys x bangles and y ear drops with minimum expenditure, then the formulation for this linear programming is
Q.173 Correct
Q.173 In-correct
Q.173 Unattempt
The function f(x)=log(x+√x2+1) is
The function f(x)=log(x+√x2+1) is
Q.174 Correct
Q.174 In-correct
Q.174 Unattempt
The number of real roots of the equation x4+√x4+20=22 is
The number of real roots of the equation x4+√x4+20=22 is
Q.175 Correct
Q.175 In-correct
Q.175 Unattempt
If the sum of first n natural numbers is ‌
1
78
 times the sum their cubes, then the value of n is
If the sum of first n natural numbers is ‌
1
78
 times the sum their cubes, then the value of n is
Q.176 Correct
Q.176 In-correct
Q.176 Unattempt
If a polygon of n sides 275 diagonals, then n is equal to
If a polygon of n sides 275 diagonals, then n is equal to
Q.177 Correct
Q.177 In-correct
Q.177 Unattempt
79+97 is divisible by
79+97 is divisible by
Q.178 Correct
Q.178 In-correct
Q.178 Unattempt
|
111
abc
a2−bcb2−cac2−ab
|‌ is equal to ‌
|
111
abc
a2−bcb2−cac2−ab
|‌ is equal to ‌
Q.179 Correct
Q.179 In-correct
Q.179 Unattempt
The number of values of x in [0,2π] satisfying the equation 3‌cos‌2‌x−10‌cos‌x+7=0 is
The number of values of x in [0,2π] satisfying the equation 3‌cos‌2‌x−10‌cos‌x+7=0 is
Q.180 Correct
Q.180 In-correct
Q.180 Unattempt
lim
x→−∞
‌
2x−1
√x2+2x+1
 is equal to
lim
x→−∞
‌
2x−1
√x2+2x+1
 is equal to
Mockers logo Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Arrow pointer icon
Click on Allow to receive notifications
Notification bell icon ×
Open Now