Home Chemistry Gaseous State ( Not In Syllabus ) JEE Advanced Previous Years Question One mole of a gas is defined as -
Chemistry Gaseous State ( Not In Syllabus ) JEE Advanced Previous Years Question Single Correct MCQ
Published on: August 11, 2026

One mole of a gas is defined as -

A
The number of molecules in one litre of gas
B
The number of molecules in one formula weight of gas
C
The number of molecules contained in 12 grams of (12 C) isotope
D
The number of molecules in 22.4 litres of a gas at S.T.P.

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The correct answer is:
D

No. of molecules in 22.4 L at STP is 6.02 × 10 23 = 1 mole of gas.

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