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WBJEE: Important Questions and Preparation Tips – States of Matter

The chapter States of Matter is a very important topic of Chemistry from the viewpoint of WBJEE 2018. To help aspirants, Subject Experts of Chemistry at Jagranjosh bring chapter notes of chapter States of Matter for coming WBJEE entrance examination 2018. About 1-2 questions are always asked from this topic in the examination

Dec 11, 2017 14:28 IST
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WBJEE 2018: States of Matter
WBJEE 2018: 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 States of Matter

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).

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Question 2:

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

(A) T = Tc and P < Pc

(B) T < Tc and P > Pc

(C) T > Tc and P > Pc

(D) T > Tc and P < Pc

Solution 2:

A gas can be liquefied when T < Tand pressure P > PC

Hence, the correct option is (B).

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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,

WBJEE States of Matter S3

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:

WBJEE States of Matter S4

Hence, the correct option is (A).

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

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