NCERT Solutions For Class 12 Chemistry Chapter 4: Chemical Kinetics

Content Curator

NCERT Solutions for Class 12 Chemistry Chapter 4 Chemical Kinetics deals with the study of the rate of reaction and variables that affect chemical reactions. Some of the important topics covered in this chapter are as follows:

Expected no. of questions: 2 to 4 questions of 7 marks.

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 4 pdf

NCERT Solutions for Class 12 Chemistry Chapter 4

The NCERT Solutions for Class 12 Chemistry Chapter 4 Chemical Kinetics is as given below.

Class 12 Chemistry Chapter 4 Chemical Kinetics – Important Topics

Chemical kinetics deals with the rate of chemical reactions. A chemical reaction is a process in which one or more reactants are converted to one or more products. Rate of reaction is the rate at which the concentration of either reactants or products gets increased or decreased.

Rate = K[A]^x [B]^y

Arrhenius equation established the relation between temperature and rate constant.

Arrhenius Equation k = Ae^-Ea/RT

Half life of a reaction is the time taken by the reactants to reduce its concentration to half compared to its initial concentration.

Half Life T_½ = 0.693/k

Order of Reaction is the sum of powers of the exponent in the rate equation. There are 3 orders of reaction, namely,

Zero order reaction
First order reaction
Second order reaction
Pseudo first order reaction

Also Read:

Related Articles
Electroosmosis	Chemical Kinetics Important Questions	Types of Electrophoresis
Chemical Reactions	Isobaric Process	Acids, Bases and Salts
Chemical Kinetics MCQs	Relation between kp and kc	Le Chatelier's principle

Check-Out:

PCMB Study Guides
NCERT Solutions for Class 12 Physics	Class 12 Physics Notes	Formulas in Physics
Topics for Comparison in Physics	Choice-based questions in physics	Topics in relation to physics
Physics Study Notes	Class 12 Physics Book PDF	Class 12 Physics Practicals
Important Derivations in Physics	SI units in Physics	Important Physics Constants and Units
Class 12 Physics Syllabus	Mendeleev's Periodic Table	NCERT Solutions for Class 12 Biology
NCERT Solutions for Class 12 English	NCERT Solutions for Class 11 Chemistry	Class 12 Chemistry Practicals
Class 12 Chemistry Notes	Important Chemical Reactions	Class 12 Maths Notes
Class 12 PCMB Notes	NCERT Class 12 Biology Book	NCERT Class 12 Maths Book
NCERT Class 12 Textbooks	NCERT Solutions for Class 11 Maths	NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 12 Maths	NCERT Solutions for Class 11 Biology	NCERT Solutions for Class 11 English
NCERT Class 11 Chemistry Book	NCERT Class 11 Physics Book	NCERT Class 11 Biology Book
Class 11 Notes	Important Maths Formulas	Important Chemistry Formulas
Class 11 PCMB Syllabus	Chemistry Study Notes	Biology Study Notes
Periodic Table in Chemistry	Important Chemical Reactions	Comparison topics in Chemistry
Comparison Topics in Maths	Biology MCQs	Important Named Reactions
Maths MCQs	Comparison Topics in Biology	Chemistry MCQs

CBSE CLASS XII Related Questions

1.
According to Werner's theory, the primary valencies of the central metal atom :
- are satisfied by neutral molecules or negative ions.
- are equal to its coordination number.
- are satisfied by negative ions.
- are non-ionisable.
View Solution
2.
Why second ionization enthalpies of chromium and copper are exceptionally higher than those of their neighbouring elements?
View Solution
3.
Answer the following: (I) Which isomer of C$_4$H$_9$Br is most reactive towards S$_N$1 reaction? (II) Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane. (III) Although chlorine shows strong $-I$ effect, yet it is ortho/para-directing in electrophilic aromatic substitution reactions. Why? (ii) Write the major product in the following reactions: (I)
(II)
View Solution
4.
(I) Which of the following is more reactive towards S$_N$1 reaction: 2-Bromo-2-methylbutane or 1-Bromopentane (II) What type of halide is present in the following compound: \[ \begin{array}{c} CH_3-CH-C=CH_2\\ |\\ CH_3 \end{array} \] \[ | \] \[ Cl \] (III) Why is chloroform stored in dark coloured bottles? (ii) Define the following terms: (I) Ambident Nucleophiles (II) Racemic mixture
View Solution
5.
Calculate the freezing point of a solution when 10.5 g of MgBr$_2$ was dissolved in 250 g of water, assuming MgBr$_2$ undergoes complete dissociation. Given: \[ \text{Molar mass of MgBr}_2 = 184 \, g\,mol^{-1} \] \[ K_f \text{ for water} = 1.86 \, K\,kg\,mol^{-1} \] (ii) Write two differences between ideal and non-ideal solutions.
View Solution
6.
What is meant by lanthanoid contraction? (ii) Why do transition metals form coloured compounds? (iii) Why are $E^\circ_{M^{2+}/M}$ values for Mn and Zn more negative than expected? (iv) Which is the most stable oxidation state of Cu and why? (v) Why is Ce$^{4+}$ in aqueous solution a good oxidising agent?
View Solution