List of top Chemistry Questions on Gas laws asked in JEE Main

At 715 mm pressure, 300 K, volume of N\(_2\) (g) evolved was 80 mL by a 0.4 g sample of organic compound. Find the percentage of N in the organic compound. Given aqueous tension at 300 K = 15 mm.
Amount of magnesium (Mg) (in mg) required to liberate 224 mL of \( H_2 \) gas at STP, when reacted with HCl.
The mass of magnesium required to produce 220 mL of hydrogen gas at STP on reaction with excess of dilute HCl is: (Given molar mass of Mg = 24 g/mol)
Statement 1: Hyper conjugation is not a permanent effect Statement 2: In general, greater the number of Alkyl groups attached to a positively charged carbon atom, greater is the Hyper conjugation interaction and stabilization of the cation.
If \(5\) moles of an ideal gas expands from \(10\) L to a volume of \(100\) L at \(300k\) under isothermal and reversible condition then work, \(W\), is \(- x J\). The value of x is \((even \;n = 8.314 \;J \;K^{-1} mol^{-1})\)

0.05 cm thick coating of silver is deposited on a plate of 0.05 m2 area. The number of silver atoms deposited on plate are _____ × 1023. (At mass Ag = 108,d = 7.9 g/cm³)

Rms velocity of hydrogen at which temperature is equal to that of the oxygen molecule at \(47 \degree\)
The number of statement/s, which are correct with respect to the compression of carbon dioxide from point (a) in the Andrews isotherm from the following is ______ 
Graph of compression of carbon dioxide
A. Carbon dioxide remains as a gas upto point (b) 
B. Liquid carbon dioxide appears at point (c) 
C. Liquid and gaseous carbon dioxide coexist between points (b) and (c) 
D. As the volume decreases from (b) to (c), the amount of liquid decreases
At constant temperature, a gas is at a pressure of 940.3 mm Hg. The pressure at which its volume decreases by 40% is mm Hg. (Nearest integer)
Match List I with List II:

List I

List II

A16 g of CH4 (g)IWeight 28g
B1 g of H2 (g)II60.2 × 1023 electrons
C1 mole of N2 (g)IIIWeighs 32 g
D0.5 mol of SO2 (g)IV Occupies 11.4 L volume at STP
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Which amongst the given plots is the correct plot for pressure \((p)\) vs density \((d)\) for an ideal gas?
Match List I with List II.
 List I (Anion) List II (gas evolved on reaction with dil \(H_2SO_4\))
A.\(CO_3^{ 2−}\)I.Colourless gas which turns lead acetate paper black.
B.\(S^{2–}\)II.Colourless gas which turns acidified potassium dichromate solution green
C.\(SO_3^{ 2−}\)III.Brown fumes which turns acidified KI solution containing starch blue.
D.\(NO_2^{−}\)IV.Colourless gas evolved with brisk effervescence, which turns lime water milky.
Choose the correct answer from the options given below: