• Written By Abhishek_verma
  • Last Modified 26-08-2022

NCERT Solutions for Class 12 Chemistry Chapter 4 Chemical Kinetics


NCERT Solutions for Class 12 Chemistry Chapter 4: The fourth chapter of Chemistry deals with Chemical Kinetics. Designed as per the latest syllabus, the NCERT Solutions for Class 12 Chemistry Chapter 4 will make it easier for the students to prepare for the examinations. It will allow the students to easily revise the entire chapter.

Click on the topic-wise links provided in the table below to get access to the CBSE Chemistry Chapter 4 Chemical Kinetics chapter-wise important questions:

Section NameTopic Name
4.1Rate Of A Chemical Reaction
4.2Factors Affecting The Rate Of Reaction
4.3The Rate Law And Rate Constant
4.4Order Of A Reaction
4.5Molecularity Of A Reaction
4.6Integrated Rate Law For Zero And First Order Reactions
4.7Pseudo First Order Reactions
4.8Temperature Dependence Of The Rate Of A Reaction
4.9Collision Theory Of Chemical Reactions

CBSE Class 12 Chemistry Chapter 4 is based on Chemical Kinetics. It covers various important concepts such as rate of chemical reaction, order of reaction, rate law, pseudo first order reactions and more. Embibe provides 30+ questions from most of the subtopics that will eventually play an important role in helping the students prepare for the exam. Students preparing for the board exams must practice these questions. In this article, we have provided some of the important details about the NCERT Solutions for Class 12 Chemistry Chapter 4 Chemical Kinetics.

NCERT Solutions for Class 12 Chemistry Chapter 4: Important Topics

Chemical Kinetics is a relatively new chapter for the students. Students who have their basics clear will not face any trouble in solving these NCERT Solutions. In the initial stages, students must practice all the questions given. It will help them stay ahead as all their doubts will be cleared. Once they start solving the questions, things will become significantly easier, ensuring faster preparation.

The NCERT Solutions are provided for all the questions for the students. Apart from the practice questions, Embibe also provides free textbooks for the students to learn. Once the students start practicing and learning from these textbooks, the chapter will become easy. Students may refer to the Embibe Explainer and 3D videos to get a better understanding of the particular chapter.

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NCERT Solutions for Class 12 Chemistry Chapter 4: Important Points To Remember

  • Chemical Kinetics is the branch of chemistry that deals with the study of reaction rates and their mechanism.
  • Molecularity refers to the number of reacting species which collide simultaneously to bring about the chemical change.
  • Catalyst is a substance which enhances the rate of a reaction without itself undergoing chemical change.
  • Integrated Rate equations refer to the differential rate equations integrated to give a relationship between rate constant and concentrations at different times.
  • The rate of Reaction is the rate of change of concentration of any of the reactants or products with time at any particular moment of time.

Students can learn more Chemistry Chapter 4 important points about Chemical Kinetics at Embibe.

NCERT Solutions for Class 12 Chemistry: All Chapters

Students preparing for board exams must practice the NCERT Solutions Chemical Kinetics for Class 12 Chemistry for all chapters. Students can get these solutions below:

Steps to Practice Unlimited 12th NCERT Chemistry Chapter-wise Mock Tests

Embibe provides personalised mock tests for every student. They can practice in their own pace and prepare themselves with ease. Below we have provided a detailed guide to taking the mock test based on latest syllabus on Embibe:

1st Step: Click on ‘Create Free Account‘.
2nd Step: Enter your mobile number.
3rd Step: Then select your Goal as ‘CBSE’.
4th Step: Select your Exam Name as ’12th CBSE’.
5th Step: Click Next and select your preferred language between ‘English’ and ‘Hindi’.
6th Step: Once done, click on the below-mentioned links to take the TEST.


Q.1: How do you calculate the rate of a chemical reaction?

Ans: The reaction rate can be calculated using the formula rate = Δ[C]/Δt, where Δ[C] is the change in product concentration during the time period Δt. Thus, the reaction rate can be observed by watching the disappearance of a reactant or the appearance of a product over time.

Q.2: What is the effect of catalyst?

Ans: The rate of a reaction can be increased by adding a suitable catalyst. A catalyst is a substance that increases the rate of a chemical reaction, but it is not used up (remains chemically unchanged at the end). It provides an alternative reaction pathway of lower activation energy.

Q.3: Where can I get the notes for CBSE Class 12 Chemistry Chapter 4 notes?

Ans: Students can get the important notes for CBSE Class 12 Chemistry Chapter 4 chemical kinetics for free from Embibe.

Q.4: What do you mean by the rate constant?

Ans: The rate constant, or the specific rate constant, is the proportionality constant in the equation that expresses the relationship between the rate of a chemical reaction and the concentrations of the reacting substances.

Q.5: Where can I take the CBSE Class 12 Chemistry mock test?

Ans: Students can take the CBSE Class 12 Chemistry mock test for free from Embibe.

Practice NCERT Class 12 Chemistry Questions With Interactive Videos