NCERT Solutions Class 12 Chemistry Chapter 4 Chemical Kinetics

NCERT Solutions Class 12 Chemistry Chapter 4 Chemical Kinetics have been provided below and is also available in Pdf for free download. The NCERT solutions for Class 12 Chemistry have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS. Questions given in NCERT book for Class 12 Chemistry are an important part of exams for Grade 12 Chemistry and if answered properly can help you to get higher marks. Refer to more Chapter-wise answers for NCERT Class 12 Chemistry and also download more latest study material for all subjects. Unit 04 Chemical Kinetics is an important topic in Class 12, please refer to answers provided below to help you score better in exams

Chapter 4 Chemical Kinetics Class 12 Chemistry NCERT Solutions

Class 12 Chemistry students should refer to the following NCERT questions with answers for Chemical Kinetics in standard 12. These NCERT Solutions with answers for Grade 12 Chemistry will come in exams and help you to score good marks

Chemical Kinetics Chapter 4 NCERT Solutions Class 12 Chemistry


NCERT Class 12 Chemistry Solutions Chemical Kinetics - NCERT Solutions prepared for CBSE students by the best teachers in Delhi. 

Class XII  Chemistry

Chapter 4 . Chemical Kinetics

Question 1:

For the reaction R ¨ P, the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction using units of time both in minutes and seconds.


Question 2:

In a reaction, 2A → Products, the concentration of A decreases from 0.5 mol L−1 to 0.4 mol L−1 in 10 minutes. Calculate the rate during this interval?


Question 3:

The conversion of molecules X to Y follows second order kinetics. If concentration of X is increased to three times how will it affect the rate of formation of Y?


Question 4:

A first order reaction has a rate constant 1.15 10−3 s−1. How long will 5 g of this reactant take to reduce to 3 g?


Question 5:

Time required to decompose SO2Cl2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, calculate the rate constant of the reaction.


Question 6:

The rate of the chemical reaction doubles for an increase of 10 K in absolute temperature from 298 K. Calculate Ea.


Question 7:

The activation energy for the reaction

2HI(g) ¨ H2 + I2(g)

is 209.5 kJ mol.1 at 581K. Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy?


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