NCERT Solutions for Class 11 Chemistry Chapter 7 – Equilibrium

NCERT Solutions for Class 11 Chemistry Chapter 7 Equilibrium will be extremely useful for you if you want to clear all your concepts of the chapter in minutes. Equilibrium is an important concept as per CBSE, JEE, NEET and other important exams. You can hold a clear understanding of the concept by practising the NCERT questions related to it first.

NCERT Solutions for Class 11 Chemistry Chapter 7 Equilibrium has 73 questions with sub-parts in most of the questions. By solving these questions you will be able to grasp the most important topics of the chapter such as finding the number of moles in a reaction, calculating the equilibrium constant, the molar concentration of a mixture, the effect of pressure on a chemical reaction, Lewis acids, calculating the pH of the solution, finding the concentration of ions in a solution etc.

Class 11 NCERT Solutions for Chemistry Chapter 7 prepared by our subject matter experts include the best answers with step-wise explanations. The solutions have been structured in a way to simplify the concepts thus help you resolve all your doubts. You can easily find solutions to all the questions and identify the areas which you need to improve in this chapter so as to score better marks.

NCERT Solutions for Class 11 Chemistry Equilibrium Cursory Introduction

Chapter 7 of the Chemistry Subject entitled Equilibrium deals with different concepts of equilibrium in order to get a deeper understanding of this broad topic. This chapter has been divided into two parts. The diverse topics explained in this chapter include the Dynamic Nature of Equilibrium, the Law of Mass Action, Le Chatelier’s Principle, Ionic Equilibrium, Henderson’s Equation, Hydrolysis of Salts, Buffer Solution and Common Ion Effect amongst others. Remember some of these notable points before you get into this Chapter:


Also known as Chemical Equilibrium, it is defined as the state in which there is no further change in the concentration of reactants and products. In other words, when the rate of the forward reaction is equal to the rate of the reverse reaction, it is known as Chemical Equilibrium.

Equilibrium in the physical processes consists of solid-liquid equilibrium, liquid-vapour equilibrium and solid-vapour equilibrium. Equilibrium in the chemical processes can be obtained through the reversible chemical reactions in the closed containers.

Le Chatelier’s Principle

Le Chatelier’s Principle states that if there is a change in any factor such as concentration, temperature or pressure, the equilibrium shifts in a direction so as to reduce the effect of a change.

Henderson’s Equation

The Henderson-Hasselbalch equation is useful to express buffer calculations or solutions. It is used to calculate or estimate the pH level of a buffer solution. It also relates to the pH of an aqueous solution of an acid to the dissociation constant of the acid. All the relevant equations and calculations have been provided in the most extensive format to ensure that you understand the concepts in-depth.

Exercise Discussion of NCERT Solutions for Class 11 Chemistry Chapter 7

  • Solving 73 exercises of the NCERT Solutions for Class 11 Chemistry Chapter 7 is not an easy task. You definitely need some kind of assistance to ensure that all your solutions are right and as per the CBSE requirements. You must also understand the nature of the questions given in the exercises. 
  • Most of the questions in the NCERT exercise of Chapter 7 are numerical-based questions in which you need to find out the equilibrium constant of a chemical reaction, the molar concentration of a chemical reaction, pH value of a reaction, equilibrium concentration etc. 
  • There are a few theory-based questions as well such as explaining the rate of evaporation and condensation, the effect of change of pressure, restoration of equilibrium etc.

Benefits of NCERT Solutions for Class 11 Chemistry Chapter 7 by Instasolv

Instasolv aims to educate through simplified, comprehensive and precise NCERT solutions that facilitate faster learning and help you attain better results. We are constantly updating our solutions as per the CBSE guidelines so as to ensure that you also stay up to date with the latest syllabus. With our NCERT Solutions for Class 11 Chemistry Chapter 7, you won’t have to look anywhere else for guidance. Each solution goes through several levels to ensure that we provide you with the best method of learning. You won’t find any solutions that are easy to understand and are yet able to capture the complexities of the chapter.