FAQ’s about Equilibrium in JEE

Central Board of Secondary Education (CBSE) conducts the JEE (joint entrance examination) every year. It is a platform to provide admissions to the aspiring candidates across the country, into the prestigious technical colleges of our country. Candidates must work tirelessly with intensive hard work and focus for obtaining success in this examination. A few important chapters and some concepts are highly significant as there is a pattern in which these questions repeat every year. Going through these questions will give you a fair idea about your preparation status and help you to utilize the remaining time before the examination.

  • What are the important topics in equilibrium?

Ans – Equilibrium does fall under the important topics, which help you in scoring good in JEE. Following are the concepts that should be studied carefully:

  • Le Chatelier Principle
  • Degree of Dissociation
  • Acids and Bases
  • Acid-Base Neutralization
  • Ionic Product of Water
  • Solubility Product
  • Salt Hydrolysis
  • Buffer Solutions

 How to Approach a question in equilibrium?

Q. Calculate the molar solubility of \(Mg(OH)_2\) in \(1 M\;\; NH_4Cl\) solution.

\(K_{sp}\;Mg(OH)_2\) = \(1.8\; \times \;10^{–11}\)

\(K_b\;(NH_3)\) = \(1.8\; \times \;10^{–5}\)

Books for reference

Refer NCERT textbook for class 11th. This book contains all the details in a very precise manner. A quick view of this can help you to understand the fundamental concepts and their applications. The important points are neatly mentioned in the book making it the most student friendly book. Some other important reference books include O. P. Tandon and P. Bahadur. For more details download Byju’s the learning app.

Practise This Question

The vapour pressure of acetone at 20C is 185 torr. When 1.2 g of a non-volatile substance was dissolved in 100 g of acetone at 20C, its vapour pressure was 183 torr. The molar mass (gmol1) of the substance is: