WBJEE: Important Questions and Preparation Tips – Equilibrium

Equilibrium is a very important part of Chemistry in the syllabus of WBJEE Entrance Examination 2018.

Find chapter notes of chapter Equilibrium including important concepts, formulae and some previous year solved questions for WBJEE Examination 2018. About 1-2 questions are always asked from this topic in the examination.

About the Chapter Notes:

These chapters notes are based on the latest syllabus including all important topics of Equilibrium like dynamic equilibrium, law  of mass, rate of forward reaction, rate of backward reaction, equilibrium constant, Le Chatelier’s principle, properties of acid, properties of base, properties of salt, Ph of acid, Ph of base etc.

These chapter notes are in very concise form and students can refer these notes when only few days are left for WBJEE Examination.

About the Exam:

West Bengal Joint Entrance Examination (WBJEE) is a state level common entrance test organized by West Bengal Joint Entrance Examinations Board for admission to the Undergraduate Level Engineering and Medical Courses through a common entrance test in the State of West Bengal.

Important Questions and Preparation Tips – Basic Concepts of Chemistry

Important Concepts:

Important Questions and Preparation Tips – Atomic Structure

Some previous years solved questions are given below:

Question 1:

(A) 10 atm^–1

(B) 10 atm

(C) 10

(D) 1

Solution 1:

The chemical reaction is given as:

Hence, the correct option is (A).

Important Questions and Preparation Tips – Solid State

Question 2:

In which of the following mixed aqueous solutions pH = pKa at equilibrium?

(1) 100 ml of 0.1M CH₃COOH + 100 ml of 0.1M CH₃COONa

(2) 100 ml of 0.1M CH₃COOH + 50 ml of 0.1M NaOH

(3) 100 ml of 0.1M CH₃COOH + 100 ml of 0.1M NaOH

(4) 100 ml of 0.1M CH₃COOH + 100 ml of 0.1M NH₃

(A) (1) is correct

(B) (2) is correct

(C) (3) is correct

(D) Both (1) and (2) are correct

Solution 2:

Hence, (1) is correct.

Hence, (2) is correct.

Hence, the correct options are (A), (B) and (D).

Question 3:

Solution 3:

Hence, the correct option is (b).

Important Questions and Preparation Tips - Phenols

Question 4:

Solution 4:

Hence, the correct option is (a).

WBJEE 2018: Notification, Application, Dates, Eligibility, Exam Pattern, Syllabus

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