NEET PYP 2015

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Solution

If energy (E), velocity (v) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be

If energy (E), velocity (v) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be

A ship A is moving Westwards with a speed of 10 kmph and a ship B 100 km South of A, is moving Northwards with a speed of 10 kmph. The time after which the distance between them becomes shortest is

A ship A is moving Westwards with a speed of 10 kmph and a ship B 100 km South of A, is moving Northwards with a speed of 10 kmph. The time after which the distance between them becomes shortest is

A particle of unit mass undergoes one-dimensional motion such that its velocity varies according to v(x) =

and n are constants and x is the position of the particle. The acceleration of the particle as a function of x, is given by

A particle of unit mass undergoes one-dimensional motion such that its velocity varies according to v(x) =

and n are constants and x is the position of the particle. The acceleration of the particle as a function of x, is given by

Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a friction less surface, as shown. If a force of 14 N is applied on the 4kg block, then the contact force between A and B is

Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a friction less surface, as shown. If a force of 14 N is applied on the 4kg block, then the contact force between A and B is

A block A of mass m 1 rests on a horizontal table. A light string connected to it passes over a frictionless pulley at the edge of table and from its other end another block B of mass m₂ is suspended. The coefficient of kinetic friction between the block and the table is

.When the block A is sliding on the table, the tension in the string is

A block A of mass m 1 rests on a horizontal table. A light string connected to it passes over a frictionless pulley at the edge of table and from its other end another block B of mass m₂ is suspended. The coefficient of kinetic friction between the block and the table is

.When the block A is sliding on the table, the tension in the string is

Two similar springs P and Q have spring constants K_P and K_Q, such that K_P> K_Q. They are stretched, first by the same amount (case a), then by the same force (case b). The work done by the springs W_P and W_Q are related as, in case (a) and case (b), respectively

Two similar springs P and Q have spring constants K_P and K_Q, such that K_P> K_Q. They are stretched, first by the same amount (case a), then by the same force (case b). The work done by the springs W_P and W_Q are related as, in case (a) and case (b), respectively

A block of mass 10 kg, moving in the x-direction with a constant speed of 10 ms^-1 is subjected to a retarding force F = 0.1 J during its travel from x = 20 m to 30 m. Its final KE will be

A block of mass 10 kg, moving in the x-direction with a constant speed of 10 ms^-1 is subjected to a retarding force F = 0.1 J during its travel from x = 20 m to 30 m. Its final KE will be

A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest, the force on the particle at time t is

A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest, the force on the particle at time t is

Two particles of masses m₁, m₂ move with initial velocities u₁ and u₂. On collision, one of the particles get excited to higher level, after absorbing energy E. If final velocities of particles be v₁ and v₂, then we must have

Two particles of masses m₁, m₂ move with initial velocities u₁ and u₂. On collision, one of the particles get excited to higher level, after absorbing energy E. If final velocities of particles be v₁ and v₂, then we must have

Q.10 In-correct

A rod of weight w is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The Centre of mass of the rod is at distance x from A. The normal reaction on A is

A rod of weight w is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The Centre of mass of the rod is at distance x from A. The normal reaction on A is

Q.11 In-correct

A mass m moves in a circle on a smooth horizontal plane with velocity v₀ at a radius R₀. The mass is attached to a string which passes through a smooth hole in the plane as shown.

The tension in the string is increased gradually and finally m moves in a circle of radius

. The final value of the kinetic energy is

A mass m moves in a circle on a smooth horizontal plane with velocity v₀ at a radius R₀. The mass is attached to a string which passes through a smooth hole in the plane as shown.

The tension in the string is increased gradually and finally m moves in a circle of radius

. The final value of the kinetic energy is

Q.12 In-correct

Three identical spherical shells, each of mass m and radius r are placed as shown in figure. Consider an axis XX', which is touching to two shells and passing through diameter of third shell. Moment of inertia of the system consisting of these three spherical shells about XX' axis is.

Three identical spherical shells, each of mass m and radius r are placed as shown in figure. Consider an axis XX', which is touching to two shells and passing through diameter of third shell. Moment of inertia of the system consisting of these three spherical shells about XX' axis is.

Q.13 In-correct

Kepler's third law states that square of period of revolution (T) of a planet around the sun, is proportional to third power of average distance r between the sun and planet i.e. T²= Kr³, here K is constant. If the masses of the sun and planet are M and m respectively, then as per Newton's law of gravitation force of attraction between them is F =

, here G is gravitational constant. The relation between G and K is described as

Kepler's third law states that square of period of revolution (T) of a planet around the sun, is proportional to third power of average distance r between the sun and planet i.e. T²= Kr³, here K is constant. If the masses of the sun and planet are M and m respectively, then as per Newton's law of gravitation force of attraction between them is F =

, here G is gravitational constant. The relation between G and K is described as

Q.14 In-correct

Two spherical bodies of masses M and 5M and radii R and 2R are released in free space with initial separation between their centers equal to 12 R. If they attract each other due to gravitational force only, then the distance covered by the smaller body before collision is

Two spherical bodies of masses M and 5M and radii R and 2R are released in free space with initial separation between their centers equal to 12 R. If they attract each other due to gravitational force only, then the distance covered by the smaller body before collision is

Q.15 In-correct

On observing light from three different stars P, Q and R, it was found that intensity of violet colour is maximum in the spectrum of P, the intensity of green colour is maximum in the spectrum of R and the intensity of red colour is maximum in the spectrum of Q. If T_P. T_Q and T_R are the respective absolute temperatures of P, Q and R, then it can be concluded from the above observations that

On observing light from three different stars P, Q and R, it was found that intensity of violet colour is maximum in the spectrum of P, the intensity of green colour is maximum in the spectrum of R and the intensity of red colour is maximum in the spectrum of Q. If T_P. T_Q and T_R are the respective absolute temperatures of P, Q and R, then it can be concluded from the above observations that

Q.16 In-correct

The approximate depth of an ocean is 2700 m. The compressibility of water is 45.4 x 10^-11 Pa^-1 and density of water is 10³kg/m ³. What fractional compression of water will be obtained at the bottom of the ocean?

The approximate depth of an ocean is 2700 m. The compressibility of water is 45.4 x 10^-11 Pa^-1 and density of water is 10³kg/m ³. What fractional compression of water will be obtained at the bottom of the ocean?

Q.17 In-correct

The two ends of a metal rod are maintained at temperatures 100 °C and110 °C. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures 200 °C and 210 °C, the rate of heat flow will be

The two ends of a metal rod are maintained at temperatures 100 °C and110 °C. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures 200 °C and 210 °C, the rate of heat flow will be

Q.18 In-correct

A wind with speed 40m/s blows parallel to the roof of a house. The area of the roof is 250m². Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be (pair= 1.2 kg/m³)

A wind with speed 40m/s blows parallel to the roof of a house. The area of the roof is 250m². Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be (pair= 1.2 kg/m³)

Q.19 In-correct

Figure below shows two paths that may be taken by a gas to go from a state A to a state C.

In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the process AC will be

Figure below shows two paths that may be taken by a gas to go from a state A to a state C.

In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the process AC will be

Q.20 In-correct

A Carnot engine, having an efficiency of

as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at a lower temperature is

A Carnot engine, having an efficiency of

as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at a lower temperature is

Q.21 In-correct

One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure.

The change in internal energy of the gas during the transition is

One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure.

The change in internal energy of the gas during the transition is

Q.22 In-correct

The ratio of the specific heats

in terms of degrees of freedom(n) is given by

The ratio of the specific heats

in terms of degrees of freedom(n) is given by

Q.23 In-correct

When two displacements represented by y₁ =asin (

t) and y₂ =bcos(

t) are superimposed, the motion is

When two displacements represented by y₁ =asin (

t) and y₂ =bcos(

t) are superimposed, the motion is

Q.24 In-correct

A particle is executing SHM along a straight line. Its velocities at distances x₁ and x₂ from the mean position are v₁ and v₂, respectively. Its time period is

A particle is executing SHM along a straight line. Its velocities at distances x₁ and x₂ from the mean position are v₁ and v₂, respectively. Its time period is

Q.25 In-correct

The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open at both the ends. The length of organ pipe open at both the ends is

The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open at both the ends. The length of organ pipe open at both the ends is

Q.26 In-correct

A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect?

A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect?

Q.27 In-correct

The electric field in a certain region is acting radially outward and is given by E = Aa. A charge contained in a sphere of radius 'a' centered at the origin of the field will be given by

The electric field in a certain region is acting radially outward and is given by E = Aa. A charge contained in a sphere of radius 'a' centered at the origin of the field will be given by

Q.28 In-correct

A potentiometer wire has length 4 m and resistance 8

. The resistance that must be connected in series with the wire and an accumulator of emf 2V, so as to get a potential gradient 1 mV per cm on the wire is

A potentiometer wire has length 4 m and resistance 8

. The resistance that must be connected in series with the wire and an accumulator of emf 2V, so as to get a potential gradient 1 mV per cm on the wire is

Q.29 In-correct

A, B and C are voltmeters of resistance R, 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter readings are V_A, V_B and V_C respectively.
Then,

A, B and C are voltmeters of resistance R, 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter readings are V_A, V_B and V_C respectively.
Then,

Q.30 In-correct

Across a metallic conductor of non-uniform cross-section, a constant potential difference is applied. The quantity which remain constant along the conductor is

Across a metallic conductor of non-uniform cross-section, a constant potential difference is applied. The quantity which remain constant along the conductor is

Q.31 In-correct

A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to X -axis while semicircular portion of radius R is lying in Y –Z plane. Magnetic field at point O is

A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to X -axis while semicircular portion of radius R is lying in Y –Z plane. Magnetic field at point O is

Q.32 In-correct

An electron moving in a circular orbit of radius r makes n rotations per second. The magnetic field produced at the centre has magnitude

An electron moving in a circular orbit of radius r makes n rotations per second. The magnetic field produced at the centre has magnitude

Q.33 In-correct

A conducting square frame of side 'a' and a long straight wire carrying current I are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity 'v'. The emf induced in the frame will be proportional to

A conducting square frame of side 'a' and a long straight wire carrying current I are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity 'v'. The emf induced in the frame will be proportional to

Q.34 In-correct

A resistance ' R' draws power 'P' when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes 'Z' the power drawn will be

A resistance ' R' draws power 'P' when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes 'Z' the power drawn will be

Q.35 In-correct

A radiation of energy 'E' falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
(c = velocity of light)

A radiation of energy 'E' falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
(c = velocity of light)

Q.36 In-correct

Two identical thin plano-convex glass lenses(refractive index 1.5) each having radius of curvature of 20cm are placed with their convex surfaces in contact at the centre. The intervene in g space is filled with oil of refractive index 1.7. The focal length of the combination is

Two identical thin plano-convex glass lenses(refractive index 1.5) each having radius of curvature of 20cm are placed with their convex surfaces in contact at the centre. The intervene in g space is filled with oil of refractive index 1.7. The focal length of the combination is

Q.37 In-correct

For a parallel beam of monochromatic light of wavelength

diffraction is produced by a single slit whose width 'a' is of the order of the wave length of the light. If 'D' is the distance of the screen from the slit, the width of the central maxima will be

For a parallel beam of monochromatic light of wavelength

diffraction is produced by a single slit whose width 'a' is of the order of the wave length of the light. If 'D' is the distance of the screen from the slit, the width of the central maxima will be

Q.38 In-correct

In a double slit experiment, the two slits are 1 mmapartandthescreenisplaced1 m away. A monochromatic light of wavelength 500nm is used. What will be the width of each slit for obtaining ten maxima of double slit with in the central maxima of single slit pattern?

In a double slit experiment, the two slits are 1 mmapartandthescreenisplaced1 m away. A monochromatic light of wavelength 500nm is used. What will be the width of each slit for obtaining ten maxima of double slit with in the central maxima of single slit pattern?

Q.39 In-correct

The refracting angle of a prism is A, and refractive index of the material of the prism is cot(A /2). The angle of minimum deviation is

The refracting angle of a prism is A, and refractive index of the material of the prism is cot(A /2). The angle of minimum deviation is

Q.40 In-correct

A certain metallic surface is illuminated with monochromatic light of wavelength

.The stopping potential for photoelectric current for this light is 3V₀. If the same surface is illuminated with light of wavelength 2A

, the stopping potentialisV₀. The threshold wavelength for this surface for photoelectric effect is

A certain metallic surface is illuminated with monochromatic light of wavelength

.The stopping potential for photoelectric current for this light is 3V₀. If the same surface is illuminated with light of wavelength 2A

, the stopping potentialisV₀. The threshold wavelength for this surface for photoelectric effect is

Q.41 In-correct

Which of the following figures represent the variation of particle momentum and the associated de-Broglie wavelength?

Which of the following figures represent the variation of particle momentum and the associated de-Broglie wavelength?

Q.42 In-correct

Consider3^rd orbit of He⁺ (Helium), using non-relativistic approach, the speed of electron in this orbit will be(given K = 9 x 10⁹constant,Z = 2 and h (Planck's constant)= 6.6 x 10^-34 J-s)

Consider3^rd orbit of He⁺ (Helium), using non-relativistic approach, the speed of electron in this orbit will be(given K = 9 x 10⁹constant,Z = 2 and h (Planck's constant)= 6.6 x 10^-34 J-s)

Q.43 In-correct

If radius of the

Al nucleus is taken to be R_AI, then the radius of

Te nucleus is nearly.

If radius of the

Al nucleus is taken to be R_AI, then the radius of

Te nucleus is nearly.

Q.44 In-correct

If in a p-n junction, a square input signal of 10 V is applied as shown,

then the output across R_L will be

If in a p-n junction, a square input signal of 10 V is applied as shown,

then the output across R_L will be

Q.45 In-correct

Which logic gate is represented by the following combination of logic gates?

Which logic gate is represented by the following combination of logic gates?

Which of the following species contains equal number of

Which of the following species contains equal number of

The species Ar, K⁺ and Ca²⁺ contain the same number of electrons. In which order do their radii increase?

The species Ar, K⁺ and Ca²⁺ contain the same number of electrons. In which order do their radii increase?

The function of "Sodium pump" is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constituent of this pump?

The function of "Sodium pump" is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constituent of this pump?

"Metals are usually not found as nitrates in their ores". Out of the following two (a and b) reasons which is/are true for the above observation?
I. Metal nitrates are highly unstable.
II. Metal nitrates are highly soluble in water.

"Metals are usually not found as nitrates in their ores". Out of the following two (a and b) reasons which is/are true for the above observation?
I. Metal nitrates are highly unstable.
II. Metal nitrates are highly soluble in water.

Solubility of the alkaline earth's metal sulphates in water decreases in the sequence

Solubility of the alkaline earth's metal sulphates in water decreases in the sequence

Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers).

Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers).

Which of the following processes does not involve oxidation of iron?

Which of the following processes does not involve oxidation of iron?

Which of the following pairs of ions are isoelectronic and isostructural?

Which of the following pairs of ions are isoelectronic and isostructural?

Which of the following options represents the correct bond order?

Which of the following options represents the correct bond order?

Q.10 In-correct

Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?

Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?

Q.11 In-correct

Maximum bond angle at nitrogen is present in which of the following?

Maximum bond angle at nitrogen is present in which of the following?

Q.12 In-correct

Magnetic moment 2.84 BM is given by (At. no. Ni = 28, Ti = 22, Cr = 24, Co = 27)

Magnetic moment 2.84 BM is given by (At. no. Ni = 28, Ti = 22, Cr = 24, Co = 27)

Q.13 In-correct

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25 °C?

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25 °C?

Q.14 In-correct

Which of these statements about [Co(CN)₆]^3- is true?

Which of these statements about [Co(CN)₆]^3- is true?

Q.15 In-correct

The activation energy of a reaction can be determined from the slope of which of the following graphs?

The activation energy of a reaction can be determined from the slope of which of the following graphs?

Q.16 In-correct

Which one is not equal to zero for an ideal solution?

Which one is not equal to zero for an ideal solution?

Q.17 In-correct

A mixture of gases contains H₂ and O₂ gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture?

A mixture of gases contains H₂ and O₂ gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture?

Q.18 In-correct

A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom?

A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom?

Q.19 In-correct

When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction is

When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction is

Q.20 In-correct

If the value of an equilibrium constant for a particular reaction is 1.6 x 10¹², then at equilibrium the system will contain

If the value of an equilibrium constant for a particular reaction is 1.6 x 10¹², then at equilibrium the system will contain

Q.21 In-correct

A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as

A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as

Q.22 In-correct

The boiling point of 0.2 mol kg^-1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case?

The boiling point of 0.2 mol kg^-1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case?

Q.23 In-correct

Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of Al₂(SO₄)₃ (if all are 100% ionised)?

Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of Al₂(SO₄)₃ (if all are 100% ionised)?

Q.24 In-correct

The number of d -electrons in Fe2 +(z = 26) is not equal to the number of electrons in which one of the following?

The number of d -electrons in Fe2 +(z = 26) is not equal to the number of electrons in which one of the following?

Q.25 In-correct

The correct order of bond order in the following species is

The correct order of bond order in the following species is

Q.26 In-correct

The angular momentum of electrons in d orbital is equal to

The angular momentum of electrons in d orbital is equal to

Q.27 In-correct

The K_SP of Ag₂CrO₄, AgCl, AgBr and Agl are respectively, 1.1 x 10^-12, 1.8 x 10^-10, 5.0 x 10^-13, 8.3 x 10^-17. Which one of the following salts will precipitate last if AgN03 solution is added to the solution containing equal moles ofNaCl, NaBr, NalandNa2Cr04?

The K_SP of Ag₂CrO₄, AgCl, AgBr and Agl are respectively, 1.1 x 10^-12, 1.8 x 10^-10, 5.0 x 10^-13, 8.3 x 10^-17. Which one of the following salts will precipitate last if AgN03 solution is added to the solution containing equal moles ofNaCl, NaBr, NalandNa2Cr04?

Q.28 In-correct

Which property of colloidal solution is independent of charge on the colloidal particles?

Which property of colloidal solution is independent of charge on the colloidal particles?

Q.29 In-correct

Which of the following statements is correct for a reversible process in a state of equilibrium?

Which of the following statements is correct for a reversible process in a state of equilibrium?

Q.30 In-correct

Bithional is generally added to the soaps as an additive to function as a/an

Bithional is generally added to the soaps as an additive to function as a/an

Q.31 In-correct

The electrolytic reduction of nitrobenzene in strongly acidic medium produces

The electrolytic reduction of nitrobenzene in strongly acidic medium produces

Q.32 In-correct

In Duma's method for estimation of nitrogen, 0.25g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is

In Duma's method for estimation of nitrogen, 0.25g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is

Q.33 In-correct

In which of the following compounds, the C—Cl bond ionization shall give most stable carbonium ion?

In which of the following compounds, the C—Cl bond ionization shall give most stable carbonium ion?

Q.34 In-correct

Q.35 In-correct

The reaction of C₆H₅CH =CHCH₃ with HBr produces

The reaction of C₆H₅CH =CHCH₃ with HBr produces

Q.36 In-correct

A single compound of the structure is

obtainable from ozonolysis of which of the following cyclic compounds?

A single compound of the structure is

obtainable from ozonolysis of which of the following cyclic compounds?

Q.37 In-correct

Treatment of cyclopentanone = o with methyl lithium gives which of the following species?

Treatment of cyclopentanone = o with methyl lithium gives which of the following species?

Q.38 In-correct

Consider the following compounds

hyperconjugation occurs in

Consider the following compounds

hyperconjugation occurs in

Q.39 In-correct

Which of the following is the most correct electron displacement for a nucleophilic reaction to take place?

Which of the following is the most correct electron displacement for a nucleophilic reaction to take place?

Q.40 In-correct

The enolic form of ethyl acetoacetate as below has

The enolic form of ethyl acetoacetate as below has

Q.41 In-correct

Given,

Which of the given compounds can exhibit tautomerism?

Given,

Which of the given compounds can exhibit tautomerism?

Q.42 In-correct

The enthalpy of hydrogenation of these compounds will be in the order as

The enthalpy of hydrogenation of these compounds will be in the order as

Q.43 In-correct

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

Q.44 In-correct

The total number of n- bond electrons in the following structure is

The total number of n- bond electrons in the following structure is

Q.45 In-correct

An organic compound X having molecular formula C₅H₁₀O yields phenyl hydrazone and gives negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be

An organic compound X having molecular formula C₅H₁₀O yields phenyl hydrazone and gives negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be

Which one of the following matches is correct?

Which one of the following matches is correct?

Read the following five statements (I to V) and select the option with all correct statements.
I. Mosses and lichens are the first organisms to colonise a bare rock.
II. Selaginella is a homosporous pteridophyte.
III. Coralloid roots in Cycas have VAM.
IV. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
V. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

Read the following five statements (I to V) and select the option with all correct statements.
I. Mosses and lichens are the first organisms to colonise a bare rock.
II. Selaginella is a homosporous pteridophyte.
III. Coralloid roots in Cycas have VAM.
IV. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
V. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

In which of the following gametophyte is not independent free-living?

In which of the following gametophyte is not independent free-living?

Which one of the following statements is wrong?

Which one of the following statements is wrong?

The guts of cow and buffalo possess

The guts of cow and buffalo possess

Male gametes are flagellated in

Male gametes are flagellated in

Vascular bundles in monocotyledons are considered closed because

Vascular bundles in monocotyledons are considered closed because

is the floral formula of

is the floral formula of

A major characteristic of the monocot root is the presence of

A major characteristic of the monocot root is the presence of

Q.10 In-correct

Keel is the characteristic feature of flower of

Keel is the characteristic feature of flower of

Q.11 In-correct

Perigynous flowers are found in

Perigynous flowers are found in

Q.12 In-correct

Leaves become modified into spines in

Leaves become modified into spines in

Q.13 In-correct

The structures that are formed by stacking of organised flattened membranous sack in the chloroplasts are

The structures that are formed by stacking of organised flattened membranous sack in the chloroplasts are

Q.14 In-correct

The chromosomes in which centromere is situated close to one end are

The chromosomes in which centromere is situated close to one end are

Q.15 In-correct

Select the correct matching in the following pairs.

Select the correct matching in the following pairs.

Q.16 In-correct

True nucleus is absent in

True nucleus is absent in

Q.17 In-correct

Which one of the following is not an inclusion body found in prokaryotes?

Which one of the following is not an inclusion body found in prokaryotes?

Q.18 In-correct

Transpiration and root pressure cause water to rise in plants by

Transpiration and root pressure cause water to rise in plants by

Q.19 In-correct

Minerals known to be required in large amounts for plant growth include

Minerals known to be required in large amounts for plant growth include

Q.20 In-correct

What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows?

What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows?

Q.21 In-correct

In a ring girdled plant

In a ring girdled plant

Q.22 In-correct

Typical growth curve in plants is

Typical growth curve in plants is

Q.23 In-correct

Which one gives the most valid and recent explanation for stomatal movements?

Which one gives the most valid and recent explanation for stomatal movements?

Q.24 In-correct

The hilum is a scar on the

The hilum is a scar on the

Q.25 In-correct

Which one of the following may require pollinators, but is genetically similar to autogamy?

Which one of the following may require pollinators, but is genetically similar to autogamy?

Q.26 In-correct

Which one of the following statements is not true?

Which one of the following statements is not true?

Q.27 In-correct

Transmission tissue is characteristic feature of

Transmission tissue is characteristic feature of

Q.28 In-correct

In ginger vegetative propagation occurs through

In ginger vegetative propagation occurs through

Q.29 In-correct

Which of the following are the important floral rewards to the animal pollinators?

Which of the following are the important floral rewards to the animal pollinators?

Q.30 In-correct

How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?

How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?

Q.31 In-correct

Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?

Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?

Q.32 In-correct

A technique of micro propagation is

A technique of micro propagation is

Q.33 In-correct

The movement of a gene from one linkage group to another is called

The movement of a gene from one linkage group to another is called

Q.34 In-correct

Multiple alleles are present

Multiple alleles are present

Q.35 In-correct

Which body of the Government of India regulates GM research and safety of introducing GM organisms for public services?

Which body of the Government of India regulates GM research and safety of introducing GM organisms for public services?

Q.36 In-correct

In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to

In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to

Q.37 In-correct

The crops engineered for glyphosate are resistant/tolerant to

The crops engineered for glyphosate are resistant/tolerant to

Q.38 In-correct

DNA is not present in

DNA is not present in

Q.39 In-correct

Which of the following enhances or induces fusion of protoplasts?

Which of the following enhances or induces fusion of protoplasts?

Q.40 In-correct

The UN Conference of Parties on climate change in the year 2011 was held in

The UN Conference of Parties on climate change in the year 2011 was held in

Q.41 In-correct

Vertical distribution of different species occupying different levels in a biotic community is known as

Vertical distribution of different species occupying different levels in a biotic community is known as

Q.42 In-correct

In which of the following both pairs have correct combination?

In which of the following both pairs have correct combination?

Q.43 In-correct

Secondary succession takes place on/in

Secondary succession takes place on/in

Q.44 In-correct

The mass of living material at a tropic level at a particular time is called

The mass of living material at a tropic level at a particular time is called

Q.45 In-correct

In an ecosystem the rate of production of organic matter during photosynthesis is termed as

In an ecosystem the rate of production of organic matter during photosynthesis is termed as

Q.46 In-correct

Which of the following characteristics is mainly responsible for diversification of insects on land

Which of the following characteristics is mainly responsible for diversification of insects on land

Q.47 In-correct

Which of the following endoparasites of humans does show viviparity?

Which of the following endoparasites of humans does show viviparity?

Q.48 In-correct

Which of the following represent the correct combination without any exception?

Which of the following represent the correct combination without any exception?

Q.49 In-correct

Which of the following animals is not viviparous?

Which of the following animals is not viviparous?

Q.50 In-correct

Erythropoiesis starts in

Erythropoiesis starts in

Q.51 In-correct

The terga sterna and pleura of cockroach body are joined by

The terga sterna and pleura of cockroach body are joined by

Q.52 In-correct

Nuclear envelope is derivative of

Nuclear envelope is derivative of

Q.53 In-correct

Cytochromes are found in

Cytochromes are found in

Q.54 In-correct

Which one of the following statements is incorrect?

Which one of the following statements is incorrect?

Q.55 In-correct

Match the following column I with column II.

Match the following column I with column II.

Q.56 In-correct

A somatic cell that has just completed the S-phase of its cell cycle, as compared to gamete of the same species has

A somatic cell that has just completed the S-phase of its cell cycle, as compared to gamete of the same species has

Q.57 In-correct

Which of the following statement is not correct?

Which of the following statement is not correct?

Q.58 In-correct

Gastric juice 'of infants contains

Gastric juice 'of infants contains

Q.59 In-correct

When you hold your breath which of the following gas changes in blood would first lead to the urge to breathe?

When you hold your breath which of the following gas changes in blood would first lead to the urge to breathe?

Q.60 In-correct

Blood pressure in the mammalian aorta is maximum during

Blood pressure in the mammalian aorta is maximum during

Q.61 In-correct

Which one of the following is correct?

Which one of the following is correct?

Q.62 In-correct

Removal of proximal convoluted tubule from the nephron will result in

Removal of proximal convoluted tubule from the nephron will result in

Q.63 In-correct

Sliding filament theory can be best explained as

Sliding filament theory can be best explained as

Q.64 In-correct

Glenoid cavity articulates

Glenoid cavity articulates

Q.65 In-correct

Which of the following regions of the brain is incorrectly paired with its function

Which of the following regions of the brain is incorrectly paired with its function

Q.66 In-correct

A gymnast is able to balance his body upside down even in the total darkness because of

A gymnast is able to balance his body upside down even in the total darkness because of

Q.67 In-correct

A chemical signal that has both endocrine and neural roles is

A chemical signal that has both endocrine and neural roles is

Q.68 In-correct

Which of the following does not favour the formation of large quantities of dilute urine?

Which of the following does not favour the formation of large quantities of dilute urine?

Q.69 In-correct

Capacitation refers to changes in the

Capacitation refers to changes in the

Q.70 In-correct

Which of these is not an important component of initiation of parturition in humans?

Which of these is not an important component of initiation of parturition in humans?

Q.71 In-correct

Which of the following viruses is not transferred through semen of an infected male?

Which of the following viruses is not transferred through semen of an infected male?

Q.72 In-correct

Which of the following cells during gametogenesis is normally diploid?

Which of the following cells during gametogenesis is normally diploid?

Q.73 In-correct

Hysterectomy is surgical removal of

Hysterectomy is surgical removal of

Q.74 In-correct

Which of the following is not a sexually transmitted disease?

Which of the following is not a sexually transmitted disease?

Q.75 In-correct

An abnormal human baby with 'XXX' sex chromosomes was born due to

An abnormal human baby with 'XXX' sex chromosomes was born due to

Q.76 In-correct

Q.77 In-correct

A man with blood group 'A' marries a woman with blood group 'B'. What are all the possible blood groups of their off springs?

A man with blood group 'A' marries a woman with blood group 'B'. What are all the possible blood groups of their off springs?

Q.78 In-correct

Gene regulation governing lactose operon of E. coli that involves the lac I gene products is

Gene regulation governing lactose operon of E. coli that involves the lac I gene products is

Q.79 In-correct

In sea urchin DNA, which is double stranded 17% of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are

In sea urchin DNA, which is double stranded 17% of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are

Q.80 In-correct

Which of the following had the smallest brain capacity?

Which of the following had the smallest brain capacity?

Q.81 In-correct

A population will not exist in Hardy-Weinberg equilibrium if

A population will not exist in Hardy-Weinberg equilibrium if

Q.82 In-correct

Match each disease with its correct type of vaccine:

Match each disease with its correct type of vaccine:

Q.83 In-correct

HIV that causes AIDS, first starts destroying

HIV that causes AIDS, first starts destroying

Q.84 In-correct

The active form of Entamoeba histolytica feed upon

The active form of Entamoeba histolytica feed upon

Q.85 In-correct

High value of BOD (Biochemical Oxygen Demand) indicates that

High value of BOD (Biochemical Oxygen Demand) indicates that

Q.86 In-correct

Most animal are tree dwellers in a

Most animal are tree dwellers in a

Q.87 In-correct

The following graph depicts changes in two populations (A and B) of herbivores in grassy field. A possible reason for these changes is that

The following graph depicts changes in two populations (A and B) of herbivores in grassy field. A possible reason for these changes is that

Q.88 In-correct

Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as

Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as

Q.89 In-correct

Rachel Carson's famous book 'Silent Spring' is related to

Rachel Carson's famous book 'Silent Spring' is related to

Q.90 In-correct

Which of the following is not one of prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric zone?

Which of the following is not one of prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric zone?

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