WBJEE: Important Questions and Preparation Tips – States of Matter

In this article, students will get chapter notes of chapter States of Matter including important concepts, formulae and some previous year solved questions based on the latest syllabus for WBJEE entrance examination 2018. Every year students get 1-2 questions from this chapter in the examination.

These notes are prepared by Subject Experts of Chemistry after the detailed analysis of the pattern and difficulty level of last few year papers of WBJEE examination.

These notes contain the crux of the chapter States of Matter. These notes will help students to save their precious time when only few days are left before the examination.

These notes include all important topics related to States of Matter like Boyle's law, Charles's law, Gay Lussac's law, Avogadro law, ideal gas equation, Dalton's law of partial pressure, compression factor, Vander Waal's equation etc.

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.

WBJEE: Important Questions and Preparation Tips – Electrochemistry

Important Concepts:

WBJEE: Important Questions and Preparation Tips – Solutions

Some previous years solved questions are given below:

Question 1:

Van der waals' real gas, acts as an ideal gas at which condition?

(A) High temperature. low pressure

(B) Low temperature, high pressure

(C) High temperature, high pressure

(D) Low temperature, low pressure

Solution 1:

At higher temperature and low pressure real gas acts as an ideal gas.

Hence, the correct option is (A).

WBJEE: Important Questions and Preparation Tips – Equilibrium

Question 2:

A gas can be liquefied at temperature T and pressure P provided

(A) T = T_c and P < P_c

(B) T < T_c and P > P_c

(C) T > T_c and P > P_c

(D) T > T_c and P < P_c

Solution 2:

A gas can be liquefied when T < T_C and pressure P > P_C

Hence, the correct option is (B).

WBJEE: Important Questions and Preparation Tips – Basic Concepts of Chemistry

Question 3:

At a certain temperature, the value of the slope of the plot of osmotic pressure (∏) against concentration (C in mol L^–1) of a certain polymer solution is 291R. The temperature at which osmotic pressure is measured is (R is gas constant)

(A) 271°C

(B) 18°C

(C) 564 K

(D) 18 K

Solution 3:

We have,

Hence, the correct option is (B).

WBJEE: Important Questions and Preparation Tips – Atomic Structure

Question 4:

A certain container holds 3.87 g neon at STP. What mass of neon will it hold at 100°C and 10 atm?

(A) 28.2 g

(B) 32.4 g

(C) 24.5 g

(D) 18.6 g

Solution 4:

Hence, the correct option is (A).

WBJEE: Important Questions and Preparation Tips – Solid State

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