Chemical Kinetics NEET PYQ with Answers

Chemical Kinetics NEET questions are provided here for practice. Candidates can refer to the given Chemical Kinetics NEET PYQ PDF with solutions for their preparation. Download the NEET Chemical Kinetics questions PDF here. Chemical Kinetics is a chapter of the Physical Chemistry section of NEET 2026. 

NEET Chemical Kinetics PYQ

Chemical Kinetics comes under the Physical Chemistry section of the NEET 2026 syllabus. It deals with the knowledge of the rate of reactions, factors affecting reactions and others. Candidates preparing for the exam must refer to the Chemical Kinetics questions to know the questions asked and their difficulty level. Knowing the questions also helps students analyse the Chemical Kinetics weightage in the NEET 2026. We have shared here the Chemical Kinetics NEET PYQ PDF containing the questions and answers based on the last 10 years analysis. Download the NEET Chemical Kinetic questions PDF below and ace your preparation now.  

NEET Chemical Kinetics Syllabus 2026

Chemical Kinetics is a part of the NEET Chemistry syllabus 2026. It is also one of the key topics of the NCERT Class 12 curriculum. As per the NEET syllabus 2026, the Chemical Kinetics chapter deals with the study of reactions. Have a look at the NEET Chemical Kinetics syllabus below-

Also Read: NEET Previous Years' Question Papers PDF

Chemical Kinetics NEET PYQ Questions

Chemical Kinetics is a part of the Class 12 NCERT. After covering the topic based on the NTA NEET syllabus and NCERT books, candidates must refer to the Chemical Kinetics previous years questions (PYQ). Practicing these questions will ultimately help candidates boost their NEET preparation 2026 to score high in the exam. Have a look at the Chemical Kinetics NEET PYQ with solutions below. These questions are provided based on the last 10 years NEET question papers.

1. If the rate constant of a reaction is 0.03s^-1, how much time does it take for a 7.2 mol ^-1 concentration of the reactant to get reduced to 0.9 mol L^-1 (Given: log 2=0.301)

1. 210 s
2. 21.0 s
3. 69.3 s 
4. 23.1 s

2. If the half-life (t_1/2) for a first-order reaction is 1 minute, then the time required for 99.9% completion of the reaction is closest to-

1. 5 minutes
2. 10 minutes
3. 2 minutes
4. 4 minutes

3. Activation energy of any chemical reaction can be calculated if one knows the value of

1. Rate constant at standard temperature
2. Probability of collision
3. Orientation of reactant molecules during collision
4. Rate constant at two different temperatures

4. Effective collisions are known to possess.

A: Energy greater than threshold energy.

B: Breaking of old bonds in reactants.

C: Formation of new bonds in products.

D: High activation energy.

E: Proper orientation.

Choose the correct answer from the options given below:

1. A, B, C, D
2. A, B, C, E
3. A, C, D, E
4. B, C, D, E

5. For a certain reaction, the rate = k[A]2[B], when the initial concentration of A is tripled keeping concentration of B constant, the initial rate would-

1. Decrease by a factor of nine
2. Increase by a factor of six
3. Increase by a factor of nine
4. Increase by a factor of three

Also Read: NEET Mock Tests Free Online PDF

6. For a first order reaction A → Products, initial concentration of A is 0.1 M, which becomes 0.001 M after 5 minutes. Rate constant for the reaction in min–1 is-

1. 0.4606
2. 0.2303 
3. 1.3818 
4. 0.9212

7. An increase in the concentration of the reactants of a reaction leads to change in :

1. Heat of reaction
2. Threshold energy
3. Collision frequency
4. Activation energy

8. If the rate constant for a first-order reaction is k, the time (t) required for the completion of 99% of the reaction is given by-

1. t = 0.693/k
2. t = 6.909/k
3. t = 4.606/k
4. t = 2.303/k

9. 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

10. The addition of a catalyst during a chemical reaction alters which of the following quantities?

1. Enthalpy
2. Activation energy
3. Entropy
4. Internal energy

Also Read: NEET Question Papers PDF in English

Answers to Chemical Kinetics NEET Questions

Check the answers to the Chemical Kinetics NEET PYQ Questions in the table below-

Other NEET PYQs-