84 JEE Main States of Matter PYQs (2002–2025) with verified answers and step-by-step solutions.
This page collects every JEE Main States of Matter previous-year question from Chemistry, 2002–2025. Each links to a full solution with a verified answer key. Click any year above to narrow the list, or open a question to study its step-by-step working and then practice it on PrepSharp's CBT player.
At the sea level, the dry air mass percentage composition is given as nitrogen gas : 70.0, oxygen gas : 27.0 and argon…
For a reaction, N₂ O₅₍~g₎ → 2 NO₂₍~g₎+(1)/(2) O₂₍~g₎ in a constant volume container, no products were present initially…
Three bulbs are filled with CH 4 , CO 2 and Ne as shown in the picture. The bulbs are connected through pipes of zero v…
A certain quantity of real gas occupies a volume of 0 . 15   dm 3 at 100   atm and 500   K when its comp…
At constant temperature, a gas is at a pressure of 940 . 3   mm   Hg . The pressure at which its volume decre…
The number of statement's, which are correct with respect to the compression of carbon dioxide from point (a) in the An…
For 1   mol of gas, the plot of pV vs p is shown below. p is the pressure and V is the volume of the gas. What is…
At 600   K , the root mean square ( rms ) speed of gas X (molar mass = 40 ) is equal to the most probable speed of…
Arrange the following gases in increasing order of van der Waals constant ' a ' (A) Ar (B) CH 4 (C) H 2 O (D) C 6 H 6 C…
At 300   K , a sample of 3 . 0   g of gas A occupies the same volume as 0 . 2   g of hydrogen at 200 …
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