Quantrex Academy Quantrex AcademyPYQs with solutions · JEE · NEET · NDA

Home · JEE Main & Advanced · NSEC · States of Matter

States of Matter — JEE Main & Advanced NSEC PYQs

14 previous year questions from States of Matter with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

14 questionsNSECSolutions on every page
1

Equal masses of ethane and hydrogen gas are present in a container at 25^ C . The fraction of the total pressure exerted by ethane gas is

Olympiad workbook Solution View → 2

The van der Waals equation for one mole of a real gas can be written as ( P + a / V ^2 )( V - b )= RT . For the gases H ₂, NH ₃ , and CH ₄ , the value of ' a ' ( . bar L ⁻² mol ⁻²

Olympiad workbook Solution View → 3

Which of the following will not give a straight line plot for an ideal gas?

Olympiad workbook Solution View → 4

The pressure inside two gas cylinders of volume 25 ~m ^3 and 50 ~m ^3 are 10 kPa and 20 kPa respectively. The cylinders are kept at the same temperature and sepearted by a valve. W

Olympiad workbook Solution View → 5

When a sample of gas kept at 20^ C and 4.0 atm is heated to 40^ C at constant volume

Olympiad workbook Solution View → 6

Density of CO ₂ gas at 0 ^ C and 2.00 atm pressure can be expressed as

Olympiad workbook Solution View → 7

Which of the following is correct? A liquid with

Olympiad workbook Solution View → 8

A substance X was heated at constant pressure and the temperature observed at various times of heating was plotted as given below Which of the following is/are correct? I. Melting

Olympiad workbook Solution View → 9

A helium cylinder in which the volume of gas =2.24 ~L at STP ( 1 ~atm , 273 ~K ) developed a leak and when the leak was plugged the pressure in the cylinder was seen to have droppe

Olympiad workbook Solution View → 10

One mole of neon (atomic mass =20 ~g ~mol ⁻¹ ) and one mole of argon (atomic mass =40 ~g ~mol ⁻¹ ) are stored in two separate containers I and II, at temperature T and 2 T respecti

Olympiad workbook Solution View → 11

A closed 2.0 L container initially holds 3.0 ~mol ^ of O ₂( ~g ) and 2.0 ~mol of ₂( ~g ) at room temperature, T. If the pressure remains constant when 1.0 mol of O ₂( ~g ) is added

Olympiad workbook Solution View → 12

A given amount of an ideal gas undergoes the cyclic process ABCA as given below. The equivalent representation/s of the same process is/are

Olympiad workbook Solution View → 13

Among the following, the correct statements about the compressibility factor (Z) of real gases are: (i) If Z 1 , intermolecular repulsive forces are more dominant. (iv) If Z>1 , in

Olympiad workbook Solution View → 14

Two flasks I and II of equal volume are evacuated and connected by a tube of negligible volume fitted with a stopcock. They are then placed in two different constant temperature ba

Olympiad workbook Solution View →
Practice all States of Matter questions in the app →