KEAM 2013 - Physics and Chemistry Solved Paper

The percentage error in measuring M, L and T are 1 %, 1.5 % and 3 % respectively. Then the percentage error in measuring the physical quantity with dimensions ML−1T−1 is

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The percentage error in measuring M, L and T are 1 %, 1.5 % and 3 % respectively. Then the percentage error in measuring the physical quantity with dimensions ML−1T−1 is

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Q.3 Correct

Q.3 In-correct

Q.3 Unattempt

From an elevated point P, a stone is projected vertically upwards. When the stone reaches a distance h below P, its velocity is double of its velocity at a height h above P. The greatest height attained by the stone from the point of projection P is

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From an elevated point P, a stone is projected vertically upwards. When the stone reaches a distance h below P, its velocity is double of its velocity at a height h above P. The greatest height attained by the stone from the point of projection P is

The distance x covered by a particle varies with time t as x2=2t2+6t+1. Its acceleration varies with x as

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The distance x covered by a particle varies with time t as x2=2t2+6t+1. Its acceleration varies with x as

A particle describes uniform circular motion in a circle of radius 2 m, with the angular speed of 2 rad s−1. The magnitude of the change in its velocity in

A particle describes uniform circular motion in a circle of radius 2 m, with the angular speed of 2 rad s−1. The magnitude of the change in its velocity in

A body projected at an angle with the horizontal has a range 300 m. If the time of flight is 6 s, then the horizontal component of velocity is

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A body projected at an angle with the horizontal has a range 300 m. If the time of flight is 6 s, then the horizontal component of velocity is

A constant force F acts on a particle of mass 1 kg moving with a velocity v, for one second. The distance moved in that time is

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A constant force F acts on a particle of mass 1 kg moving with a velocity v, for one second. The distance moved in that time is

The velocity-time graph for the vertical component of the velocity of a body thrown upwards from the ground and landing on the roof of a building is given in the figure. The height of the building is

Q.9 Correct

Q.9 In-correct

Q.9 Unattempt

A spacecraft of mass 100 kg breaks into two when its velocity is 104 m s−1. After the break, a mass of 10 kg of the space craft is left stationary. The velocity of the remainingpart is

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A spacecraft of mass 100 kg breaks into two when its velocity is 104 m s−1. After the break, a mass of 10 kg of the space craft is left stationary. The velocity of the remainingpart is

A particle tied to a string describes a vertical circular motion of radius continually. If it has a velocity √3gr at the highest point, then the ratio of the respective tensions in the string holding it at the highest and lowest points is

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A particle tied to a string describes a vertical circular motion of radius continually. If it has a velocity √3gr at the highest point, then the ratio of the respective tensions in the string holding it at the highest and lowest points is

In a uniform circular motion, the angle between the velocity and acceleration is

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In a uniform circular motion, the angle between the velocity and acceleration is

A crate is pushed horizontally with 100 N across a 5 m floor. If the frictional force between the crate and the floor is 40 N, then the kinetic energy gained by the crate is

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A crate is pushed horizontally with 100 N across a 5 m floor. If the frictional force between the crate and the floor is 40 N, then the kinetic energy gained by the crate is

The potential energy of a conservative system is given by V(x)=(x2−3x) joule, where x is measured in metre. Then its equilibrium position is at

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The potential energy of a conservative system is given by V(x)=(x2−3x) joule, where x is measured in metre. Then its equilibrium position is at

An engine pumps out water continuously through a hose with a velocity v. If m is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

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An engine pumps out water continuously through a hose with a velocity v. If m is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

A body of mass 1.5 kg rotating about an axis with angular velocity of 0.3 rad s−1 has the angular momentum of 1.8 kg m2s−2. The radius of gyration of the body about an axis is

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A body of mass 1.5 kg rotating about an axis with angular velocity of 0.3 rad s−1 has the angular momentum of 1.8 kg m2s−2. The radius of gyration of the body about an axis is

In a two-particle system with particle masses m1 and m2, the first particle is pushed towards the centre of mass through a distance d, the distance through which second particle must be moved to keep the centre of mass at the same position is

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In a two-particle system with particle masses m1 and m2, the first particle is pushed towards the centre of mass through a distance d, the distance through which second particle must be moved to keep the centre of mass at the same position is

The principle involved in the performance of a spinning-chair circus acrobat is

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The principle involved in the performance of a spinning-chair circus acrobat is

Two bodies of masses 4 kg and 9 kg are separated by a distance of 60 cm. A 1 kg mass is placed in between these two masses. If the net force on 1 kg is zero, then its distance from 4 kg mass is

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Two bodies of masses 4 kg and 9 kg are separated by a distance of 60 cm. A 1 kg mass is placed in between these two masses. If the net force on 1 kg is zero, then its distance from 4 kg mass is

The total energy and kinetic energy of an Earth’s satellite are respectively

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The total energy and kinetic energy of an Earth’s satellite are respectively

If the earth is one-fourth of its present distance from the sun, the duration of the year will be changed to

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If the earth is one-fourth of its present distance from the sun, the duration of the year will be changed to

A ball falling in a lake of depth 400 m has a decrease of 0.2 % in its volume at the bottom. The bulk modulus of the material of the ball is (in Nm−2)

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A ball falling in a lake of depth 400 m has a decrease of 0.2 % in its volume at the bottom. The bulk modulus of the material of the ball is (in Nm−2)

Three capillary tubes of same length but internal radii 0.3 mm, 0.45 mm and 0.6 mm are connected in series and a liquid flows steadily through them. If the pressure difference across the third capillary is 8.1 mm of mercury, the pressure difference across the first capillary (in mm of mercury) is

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Three capillary tubes of same length but internal radii 0.3 mm, 0.45 mm and 0.6 mm are connected in series and a liquid flows steadily through them. If the pressure difference across the third capillary is 8.1 mm of mercury, the pressure difference across the first capillary (in mm of mercury) is

A ring cut with an inner radius 4.85 cm and outer radius 4.95 cm is supported horizontally from one of the pans of a balance so that it comes in contact with the water in a vessel. If surface tension of water is 70×10−3‌Nm−1, then the extra mass in the other pan required to pull the ring away from water is

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A ring cut with an inner radius 4.85 cm and outer radius 4.95 cm is supported horizontally from one of the pans of a balance so that it comes in contact with the water in a vessel. If surface tension of water is 70×10−3‌Nm−1, then the extra mass in the other pan required to pull the ring away from water is

Two spherical rain drops with radii in the ratio 1 : 2 fall from a great height through the atmosphere. The ratio of their momenta after they have attained terminal velocity is

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Two spherical rain drops with radii in the ratio 1 : 2 fall from a great height through the atmosphere. The ratio of their momenta after they have attained terminal velocity is

If the temperatures of source and sink of a Carnot engine having efficiency η are each decreased by 100 K, then the efficiency

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If the temperatures of source and sink of a Carnot engine having efficiency η are each decreased by 100 K, then the efficiency

If the time taken by a hot body to cool from 50°C to 40°C is 10 minutes when thesurrounding temperature is 25°C, then the time taken for it to cool from 40°C to 30°Cwhen the surrounding temperature is 15°C, is

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If the time taken by a hot body to cool from 50°C to 40°C is 10 minutes when thesurrounding temperature is 25°C, then the time taken for it to cool from 40°C to 30°Cwhen the surrounding temperature is 15°C, is

The P-V diagram of a gas system undergoing cyclic process is shown here. The work done during isobaric compression is

Q.28 Correct

Q.28 In-correct

Q.28 Unattempt

In a cyclic process, the amount of heat given to a system is equal to

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In a cyclic process, the amount of heat given to a system is equal to

A particle is executing simple harmonic motion with amplitude A. When the ratio of its kinetic energy to the potential energy is

1

4

, its displacement from its mean position is

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A particle is executing simple harmonic motion with amplitude A. When the ratio of its kinetic energy to the potential energy is

1

4

, its displacement from its mean position is

The ratio of amplitudes of two simple harmonic motions represented by the equations y1=5sin(2πt+

π

4

) and y2=2√2(sin2πt+cos2πt) is

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The ratio of amplitudes of two simple harmonic motions represented by the equations y1=5sin(2πt+

π

4

) and y2=2√2(sin2πt+cos2πt) is

The displacement of a particle in SHM is x=10sin(2t−

π

6

) metre. When its displacement is 6 m, the velocity of the particle (in ms−1)

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The displacement of a particle in SHM is x=10sin(2t−

π

6

) metre. When its displacement is 6 m, the velocity of the particle (in ms−1)

The bulk modulus of a liquid of density 8000 kg−3 is 2×109Nm−2. The speed of sound in that liquid is (in ms−1)

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The bulk modulus of a liquid of density 8000 kg−3 is 2×109Nm−2. The speed of sound in that liquid is (in ms−1)

The vibrations of a string of length 60 cm fixed at both the ends are represented by the equation y=2sin(

4πx

15

)cos(96πt) where x and y are in cm. The maximum number of loops that can be formed in it is

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The vibrations of a string of length 60 cm fixed at both the ends are represented by the equation y=2sin(

4πx

15

)cos(96πt) where x and y are in cm. The maximum number of loops that can be formed in it is

The pressure variations in the propagation of sound waves are

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The pressure variations in the propagation of sound waves are

An uncharged parallel plate capacitor filled with a dielectric of dielectric constant K is connected to an air filled identical parallel capacitor charged to potential V1. If the common potential is V2, the value of K is

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An uncharged parallel plate capacitor filled with a dielectric of dielectric constant K is connected to an air filled identical parallel capacitor charged to potential V1. If the common potential is V2, the value of K is

When a comb rubbed with dry hair attracts pieces of paper. This is because the

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When a comb rubbed with dry hair attracts pieces of paper. This is because the

If the electric flux entering and leaving a closed surface are 6×106 and 9×106 S.I. units respectively, then the charge inside the surface of permittivity of free space ε0 is

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If the electric flux entering and leaving a closed surface are 6×106 and 9×106 S.I. units respectively, then the charge inside the surface of permittivity of free space ε0 is

Choose the wrong statement about equipotential surfaces.

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Choose the wrong statement about equipotential surfaces.

Three capacitors connected in series have an effective capacitance of 4 µF. If one of the capacitance is removed, the net capacitance of the capacitor increases to 6 µF. The removed capacitor has a capacitance of

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Three capacitors connected in series have an effective capacitance of 4 µF. If one of the capacitance is removed, the net capacitance of the capacitor increases to 6 µF. The removed capacitor has a capacitance of

Resistances of 12 Ω and X Ω are connected in parallel in the left gap and resistances of 9 Ω and 7 Ω are connected in series in the right gap of the meter bridge. If the balancing length is 36 cm, then the value of resistance X is

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Resistances of 12 Ω and X Ω are connected in parallel in the left gap and resistances of 9 Ω and 7 Ω are connected in series in the right gap of the meter bridge. If the balancing length is 36 cm, then the value of resistance X is

Ten identical batteries each of em f 2 V are connected in series to a 8 Ωresistor. If the current in the circuit is 2 A, then the internal resistance of each battery is

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Ten identical batteries each of em f 2 V are connected in series to a 8 Ωresistor. If the current in the circuit is 2 A, then the internal resistance of each battery is

In a potentiometer of wire length l a cell of emf V is balanced at a length

l

3

from the positive end of the wire. For another cell of emf 1.5 V, the balancing length becomes

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In a potentiometer of wire length l a cell of emf V is balanced at a length

l

3

from the positive end of the wire. For another cell of emf 1.5 V, the balancing length becomes

The smallest resistance that can be obtained by combining 10 resistors each of resistance 10 Ω is

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The smallest resistance that can be obtained by combining 10 resistors each of resistance 10 Ω is

Pick out the wrong statement from the following

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Pick out the wrong statement from the following

A steel plate of size 6 cm x 6 cm is to be coated by a metal on both sides with a coating thickness of 0.1 mm by electrolysis. If the density and ece of the metal are respectively 10 g cm−3 and 0.001 g C−1, then the strength of the current to complete the process in one hour is

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A steel plate of size 6 cm x 6 cm is to be coated by a metal on both sides with a coating thickness of 0.1 mm by electrolysis. If the density and ece of the metal are respectively 10 g cm−3 and 0.001 g C−1, then the strength of the current to complete the process in one hour is

The magnetic field at a point midway between two parallel long wires carrying currents in the same direction is 10 µT. If the direction of the smaller current among them is reversed, the field becomes 30 µT. The ratio of the larger to the smaller current in them is

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The magnetic field at a point midway between two parallel long wires carrying currents in the same direction is 10 µT. If the direction of the smaller current among them is reversed, the field becomes 30 µT. The ratio of the larger to the smaller current in them is

The angle of dip at a place where horizontal and vertical components of earth’s magnetic field are equal is

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The angle of dip at a place where horizontal and vertical components of earth’s magnetic field are equal is

An AC source of voltage E = 20 sin 100 t is connected across a resistance 20 Ω. The rms value of current in the circuit is

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An AC source of voltage E = 20 sin 100 t is connected across a resistance 20 Ω. The rms value of current in the circuit is

A given resistor has the following colour code of the various strips on it: Brown, black, green and silver. The value of its resistance in ohm is

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A given resistor has the following colour code of the various strips on it: Brown, black, green and silver. The value of its resistance in ohm is

A 100 turns coil of area of cross section 200 cm2 having 2 Ω resistance is held perpendicular to a magnetic field of 0.1 T. If it is removed from the magnetic field in one second, the induced charge produced in it is

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A 100 turns coil of area of cross section 200 cm2 having 2 Ω resistance is held perpendicular to a magnetic field of 0.1 T. If it is removed from the magnetic field in one second, the induced charge produced in it is

The self-inductance of an air core solenoid of 100 turns is 1 mH. The self-inductance of another solenoid of 50 turns (with the same length and cross-sectional area) with a core having relative permeability 500 is

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The self-inductance of an air core solenoid of 100 turns is 1 mH. The self-inductance of another solenoid of 50 turns (with the same length and cross-sectional area) with a core having relative permeability 500 is

A step-down transformer with an efficiency of 80 % is used on a 1000 V line to deliver 10 A at 100 V at the secondary coil. The current drawn from the line is

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A step-down transformer with an efficiency of 80 % is used on a 1000 V line to deliver 10 A at 100 V at the secondary coil. The current drawn from the line is

Identify the wrong statement

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Identify the wrong statement

If the magnetic field of an electromagnetic wave is given as

By=2×10−7sin(103x+105×1012t)

tesla, the wavelength of the electromagnetic wave is

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If the magnetic field of an electromagnetic wave is given as

By=2×10−7sin(103x+105×1012t)

tesla, the wavelength of the electromagnetic wave is

The electromagnetic waves travel with

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The electromagnetic waves travel with

The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be

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The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be

The angle of incidence for an equilateral prism of refractive index √3 so that the ray is parallel to the base inside the prism is

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The angle of incidence for an equilateral prism of refractive index √3 so that the ray is parallel to the base inside the prism is

If the intensity ratio of two coherent sources used in Young’s double slit experiment is 49 : 1, then the ratio between the maximum and minimum intensities in the interference pattern is

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If the intensity ratio of two coherent sources used in Young’s double slit experiment is 49 : 1, then the ratio between the maximum and minimum intensities in the interference pattern is

According to Rayleigh scattering law, the amount of scattering is

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According to Rayleigh scattering law, the amount of scattering is

The de Broglie wavelength and kinetic energy of a particle is 2000 Å and 1 eV respectively. If its kinetic energy becomes 1 MeV, then its de Broglie wavelength is

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The de Broglie wavelength and kinetic energy of a particle is 2000 Å and 1 eV respectively. If its kinetic energy becomes 1 MeV, then its de Broglie wavelength is

The work functions of two metals are 2.75 eV and 2 eV respectively. If these are irradiated by photons of energy 3 eV, the ratio of maximum momenta of the photo electrons emitted respectively by them is

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The work functions of two metals are 2.75 eV and 2 eV respectively. If these are irradiated by photons of energy 3 eV, the ratio of maximum momenta of the photo electrons emitted respectively by them is

A radioactive material of half-life time of 69.3 days kept in a container.

2

3

rd substance remains undecayed after (given, In

A radioactive material of half-life time of 69.3 days kept in a container.

2

3

rd substance remains undecayed after (given, In

The maximum kinetic energy of photoelectrons

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The maximum kinetic energy of photoelectrons

If an ideal junction diode is connected as shown, then the value of the current i is

Q.66 Correct

Q.66 In-correct

Q.66 Unattempt

Identify the mismatched pair from the following

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Identify the mismatched pair from the following

In a common emitter configuration, a transistor has (β = 50 and input resistance 1 kΩ If the peak value of a.c. input is 0.01 V then the peak value of collector current is

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In a common emitter configuration, a transistor has (β = 50 and input resistance 1 kΩ If the peak value of a.c. input is 0.01 V then the peak value of collector current is

The wave forms A and B given below are given as input to a NAND gate. Then its logic output y is

Q.69 Correct

Q.69 In-correct

Q.69 Unattempt

The radiating power of a linear antenna of length l for a wave of wavelength X is proportional to

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The radiating power of a linear antenna of length l for a wave of wavelength X is proportional to

A signal of 5 kHz frequency modulates a carrier of frequency 1 MHz and peak voltage 25 V. If the amplitude at the side bands of the amplitude modulated signal is 5 V, then the modulation index is

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A signal of 5 kHz frequency modulates a carrier of frequency 1 MHz and peak voltage 25 V. If the amplitude at the side bands of the amplitude modulated signal is 5 V, then the modulation index is

A repeater is a combination of

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A repeater is a combination of

The volume of neon gas in cm3 at STP having the same number of atoms as that present in 800 mg of Ca is (At. mass: Ca = 40 g mol−1, Ne = 20 g mol−1)

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The volume of neon gas in cm3 at STP having the same number of atoms as that present in 800 mg of Ca is (At. mass: Ca = 40 g mol−1, Ne = 20 g mol−1)

The ionization enthalpy of He+ ion is 19.60×10−18‌J‌atom−1. The ionization enthalpy of Li+2 ion will be

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The ionization enthalpy of He+ ion is 19.60×10−18‌J‌atom−1. The ionization enthalpy of Li+2 ion will be

How many molecules of CO2 are formed when one milligram of 100% pure CaCO3 is treated with excess hydrochloric acid?

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How many molecules of CO2 are formed when one milligram of 100% pure CaCO3 is treated with excess hydrochloric acid?

Molecular shapes of SF4,CF4 and XeF4 and the number of lone pairs on the central atom are respectively

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Molecular shapes of SF4,CF4 and XeF4 and the number of lone pairs on the central atom are respectively

Which one of the following is not correct in respect of hybridization of orbitals?

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Which one of the following is not correct in respect of hybridization of orbitals?

Allyl cyanide molecule contains

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Allyl cyanide molecule contains

Two vessels of volumes 16.4 L and 5 L contain two ideal gases of molecular existence at the respective temperature of 27°C and 227°C and exert 1.5 and 4.1 atmospheres respectively. The ratio of the number of molecules of the former to that of the later is

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Two vessels of volumes 16.4 L and 5 L contain two ideal gases of molecular existence at the respective temperature of 27°C and 227°C and exert 1.5 and 4.1 atmospheres respectively. The ratio of the number of molecules of the former to that of the later is

When 4 g of an ideal gas A is introduced into an evacuated flask kept at 25°C, the pressure is found to be one atmosphere. If 6 g of another ideal gas B is then added to the same flask, the pressure becomes 2 atm at the same temperature. The ratio of molecular weights (MA:MB) of the two gases would be

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When 4 g of an ideal gas A is introduced into an evacuated flask kept at 25°C, the pressure is found to be one atmosphere. If 6 g of another ideal gas B is then added to the same flask, the pressure becomes 2 atm at the same temperature. The ratio of molecular weights (MA:MB) of the two gases would be

Which one of the following statements is correct?

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Which one of the following statements is correct?

Which of the following noble gases has the highest positive electron gain enthalpy value?

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Which of the following noble gases has the highest positive electron gain enthalpy value?

Among the elements B, Mg, Al and K, the correct order of increasing metallic character is

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Among the elements B, Mg, Al and K, the correct order of increasing metallic character is

In Solvay process of manufacture of sodium carbonate, the by-product is

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In Solvay process of manufacture of sodium carbonate, the by-product is

An inorganic salt (A) is decomposed on heating to give two products (B) and (C). Compound (C) is a liquid at room temperature and is neutral to litmus while the compound (B) is a colourless neutral gas. Compounds (A), (B) and (C) are

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An inorganic salt (A) is decomposed on heating to give two products (B) and (C). Compound (C) is a liquid at room temperature and is neutral to litmus while the compound (B) is a colourless neutral gas. Compounds (A), (B) and (C) are

The correct formula of borax is

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The correct formula of borax is

Oxyacids of phosphorous and the starting materials for their preparation are given below.

Choose the correct answer from the codes given below

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Oxyacids of phosphorous and the starting materials for their preparation are given below.

Choose the correct answer from the codes given below

Which one of the following metals has a different lattice from those of the others?

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Which one of the following metals has a different lattice from those of the others?

In the dichromate dianion, the nature of bonds are

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In the dichromate dianion, the nature of bonds are

In neutral or faintly alkaline medium, thiosulphate is quantitatively oxidized by KMnO4 to

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In neutral or faintly alkaline medium, thiosulphate is quantitatively oxidized by KMnO4 to

At constant external pressure of one atmosphere, 4 moles of a metallic oxide MO2 undergoes complete decomposition at 227°C in an open vessel according to the equation
2MO2(s)→2MO(s)+O2(g) The work done by the system in kJ is (R = 8.3 4‌J

At constant external pressure of one atmosphere, 4 moles of a metallic oxide MO2 undergoes complete decomposition at 227°C in an open vessel according to the equation
2MO2(s)→2MO(s)+O2(g) The work done by the system in kJ is (R = 8.3 4‌J

A certain reaction has a ΔH of 12 kJ and a ΔS of 40 Jk−1. The temperature above which the reaction becomes spontaneous is

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A certain reaction has a ΔH of 12 kJ and a ΔS of 40 Jk−1. The temperature above which the reaction becomes spontaneous is

The sum of pH and pKb for a basic buffer solution is 13. The ratio of the concentration of the base to that of the salt is

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The sum of pH and pKb for a basic buffer solution is 13. The ratio of the concentration of the base to that of the salt is

Two equilibria, AB⇌A++B− and AB+B−⇌AB2− are simultaneously maintained in a solution with equilibrium constants, K1‌and‌K2 respectively. The ratio of [A+] to [AB2] in the solution is

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Two equilibria, AB⇌A++B− and AB+B−⇌AB2− are simultaneously maintained in a solution with equilibrium constants, K1‌and‌K2 respectively. The ratio of [A+] to [AB2] in the solution is

If the elevation in boiling point of a solution of non-volatile, non electrolytic and non-associating solute in a solvent (Kb=x‌K‌kg‌mol−1) is y K, then the depression in freezing point of solution of same concentration would be (Kf of the solvent = z K kg mol−1)

©

If the elevation in boiling point of a solution of non-volatile, non electrolytic and non-associating solute in a solvent (Kb=x‌K‌kg‌mol−1) is y K, then the depression in freezing point of solution of same concentration would be (Kf of the solvent = z K kg mol−1)

The vapour pressure of pure benzene and toluene at a particular temperature are 100 mm and 50 mm respectively. Then the mole fraction of benzene in vapour phase incontact with equimolar solution of benzene and toluene is

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The vapour pressure of pure benzene and toluene at a particular temperature are 100 mm and 50 mm respectively. Then the mole fraction of benzene in vapour phase incontact with equimolar solution of benzene and toluene is

A current strength of 9.65 amperes is passed through excess fused AlCl3 for 5 hours.How many litres of chlorine will be liberated at STP? (F = 96500 C)

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A current strength of 9.65 amperes is passed through excess fused AlCl3 for 5 hours.How many litres of chlorine will be liberated at STP? (F = 96500 C)

When the total cell emf of a voltaic cell is greater than zero, which of the following is true about the reaction quotient Q and free energy change ΔG for the cell reaction?

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When the total cell emf of a voltaic cell is greater than zero, which of the following is true about the reaction quotient Q and free energy change ΔG for the cell reaction?

The reaction A + B → products is first order with respect to A and second order with respect to B. When 1.0 mol each of A and B were taken in one litre flask, the initial rate of the reaction is 1.0×10−2‌mol‌lit−1‌s−1, The rate of the reaction when 50% of the reactants have been converted into products is

©

The reaction A + B → products is first order with respect to A and second order with respect to B. When 1.0 mol each of A and B were taken in one litre flask, the initial rate of the reaction is 1.0×10−2‌mol‌lit−1‌s−1, The rate of the reaction when 50% of the reactants have been converted into products is

For the following reaction: NO2(g)+CO(g)→NO(g)+CO(g), the rate law is : Rate = k[NO2]2. If 0.1 mole of gaseous carbon monoxide is added at constant temperature to the reaction mixture which of the following statements is true?

©

For the following reaction: NO2(g)+CO(g)→NO(g)+CO(g), the rate law is : Rate = k[NO2]2. If 0.1 mole of gaseous carbon monoxide is added at constant temperature to the reaction mixture which of the following statements is true?

Which one of the following is an example for multimolecular colloid?

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Which one of the following is an example for multimolecular colloid?

Amongst the following ions which one has the highest magnetic moment value? (At. no.: Co = 27, Ni = 28)

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Amongst the following ions which one has the highest magnetic moment value? (At. no.: Co = 27, Ni = 28)

The colour of the solution/precipitate obtained in the elemental analysis of an organic compound and the molecule/ion responsible for the colour are given below. Choose the incorrectly matched pair

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The colour of the solution/precipitate obtained in the elemental analysis of an organic compound and the molecule/ion responsible for the colour are given below. Choose the incorrectly matched pair

The correct IUPAC name of the following compound
H3C−CH

The correct IUPAC name of the following compound
H3C−CH

Which one of the following halogen compounds is difficult to be hydrolysed by SN1 mechanism?

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Which one of the following halogen compounds is difficult to be hydrolysed by SN1 mechanism?

Which one among the following cannot exhibit enantiomerism?

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Which one among the following cannot exhibit enantiomerism?

The total number of acyclic structural isomers possible for compound with molecularformula C4H10O is

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The total number of acyclic structural isomers possible for compound with molecularformula C4H10O is

Compound ‘A’ of molecular formula C4H10O on treatment with Lucas reagent at room temperature gives compound ‘B' When compound ‘B’ is heated with alcoholic KOH, it gives isobutene. Compound ‘A’ and ‘B’ are respectively

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Compound ‘A’ of molecular formula C4H10O on treatment with Lucas reagent at room temperature gives compound ‘B' When compound ‘B’ is heated with alcoholic KOH, it gives isobutene. Compound ‘A’ and ‘B’ are respectively

Salicylaldehyde can be prepared from phenol by

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Salicylaldehyde can be prepared from phenol by

Which one of the following is not an allylic halide?

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Which one of the following is not an allylic halide?

One mole of alkene on ozonolysis gives 2 moles of butanone. The alkene is

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One mole of alkene on ozonolysis gives 2 moles of butanone. The alkene is

The compound that neither forms semicarbazone nor oxime is

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The compound that neither forms semicarbazone nor oxime is

Isopropylbenzene is oxidized in the presence of air to compound ‘A’. When compound ‘A’ is treated with dilute mineral acid, the aromatic product formed is

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Isopropylbenzene is oxidized in the presence of air to compound ‘A’. When compound ‘A’ is treated with dilute mineral acid, the aromatic product formed is

Positive carbylamine test is shown by

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Positive carbylamine test is shown by

Among the following amines, which one has the highest pKb value in aqueous solution?

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Among the following amines, which one has the highest pKb value in aqueous solution?

An organic compound A containing nitrogen, on acid catalysed hydrolysis produces a water soluble organic compound B and a gaseous compound C. When methyl magnesium bromide is slowly added to A in 1 : 1 ratio and hydrolysed, it produces a compound which can be obtained by dry distillation of the calcium salt of B. The compound A is

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An organic compound A containing nitrogen, on acid catalysed hydrolysis produces a water soluble organic compound B and a gaseous compound C. When methyl magnesium bromide is slowly added to A in 1 : 1 ratio and hydrolysed, it produces a compound which can be obtained by dry distillation of the calcium salt of B. The compound A is

How many amino acids are present in insulin?

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How many amino acids are present in insulin?

The repeating unit present in Nylon 6 is

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The repeating unit present in Nylon 6 is

Which one of the following is NOT correct?

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Which one of the following is NOT correct?

How many times oxyhaemoglobin is less stable than carboxyhaemoglobin?

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How many times oxyhaemoglobin is less stable than carboxyhaemoglobin?

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