The incorrect statement among the following is:

1. The value of the equilibrium constant is changed in the presence of a catalyst in the reaction at equilibrium
2. Enzymes catalyze mainly bio-chemical reactions
3. Coenzymes increase the catalytic activity of the enzyme
4. The catalyst does not initiate any reaction

Subtopic:  Catalyst |
 75%
From NCERT
NEET - 2017
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The correct statement among the following is:

1. the rate of a first-order reaction does not depend on reactant concentration; the rate of a second-order reaction does depend on reactant concentrations.
2. the half-life of a first-order reaction does not depend on [A]o; the half-life of a second-order reaction does depend on [A]0
3. a first-order reaction can be catalyzed; a second-order reaction cannot be catalyzed.
4. the rate of a first-order reaction does depend on reactant concentrations; the rate of a second-order reaction does not depend on reactant concentrations
Subtopic:  Definition, Rate Constant, Rate Law |
 76%
From NCERT
NEET - 2018
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When the initial concentration of the reactant is doubled,
the half-life period of a zero-order reaction:

1. is halved 2. is doubled
3. is tripled 4. remains unchanged
Subtopic:  Order, Molecularity and Mechanism |
 76%
From NCERT
NEET - 2018
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

Which quantity is altered when a catalyst is introduced during a chemical reaction?
1. Internal energy 2. Enthalpy
3. Activation energy 4. Entropy
Subtopic:  Definition, Rate Constant, Rate Law |
 93%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A reaction having equal energies of activation for forward and reverse reaction has:

1. ΔG = 0

2. ΔH = 0

3. ΔH = ΔG = ΔS = 0

4. ΔS = 0

Subtopic:  Arrhenius Equation |
 72%
From NCERT
AIPMT - 2013
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In a reaction, A + B  → Product, the rate is doubled when the concentration of B is doubled, and the rate increases by a factor of 8, when the concentrations of both the reactants (A and B) are doubled. The rate law for the reaction can be written as:

1. Rate = k[A][B]2

2. Rate = k[A]2[B]2

3. Rate = k[A][B]

4. Rate = k[A]2[B]

Subtopic:  Definition, Rate Constant, Rate Law |
 75%
From NCERT
AIPMT - 2012
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

In a zero-order reaction for every 10 ° rise of temperature, the rate is doubled.
If the temperature is increased from 10 °C to 100 °C,
the rate of the reaction will become:

1. 256 times

2. 512 times

3. 64 times

4. 128 times

Subtopic:  First Order Reaction Kinetics |
 84%
From NCERT
AIPMT - 2012
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The incorrect statement regarding the order of reaction is:

1. Order is not influenced by the stoichiometric coefficient of the reactants.
2. Order of reaction is the sum of power to the concentration terms of reactants to express the rate of reaction.
3. The order of reaction is always a whole number.
4. Order can be determined by experiments only.
Subtopic:  Definition, Rate Constant, Rate Law |
 79%
From NCERT
AIPMT - 2011
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

During the kinetic study of the reaction, 2A + B\( \rightarrow\)C + D, following results were obtained:
 

Run

[A)/ mol L-1

[B)/ mol L-1

Initial rate of
formation of D/mol 

L-1

I

0.1

0.1

6.0×10-3

II

0.3

0.2

7.2×10-2

III

0.3

0.4

2.88×10-1

IV

0.4

0.1

2.40×10-2


Based on the above data which one of the following is correct?

1. rate= k[A]2[B]

2. rate= k[A][B]

3. rate= k[A]2[B]2

4. rate= k[A][B]2

Subtopic:  Definition, Rate Constant, Rate Law |
 76%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

advertisementadvertisement

The half-life period of a first-order reaction is 1386 s. The specific rate constant of the reaction is:

1. 5.0×10-3s-1

2. 0.5×10-2s-1

3. 0.5×10-3s-1

4. 5.0×10-2s-1

Subtopic:  Definition, Rate Constant, Rate Law |
 84%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh