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Question
Assertion (A): One mole of a gas occupies 24.4 litres at S.T.P.
Reason (R): The mass of one mole of a gas is equal to its molecular mass.
Options
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
MCQ
Assertion and Reasoning
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Solution
A is false but R is true.
Explanation:
At S.T.P., one mole of a gas occupies 22.4 litres, not 24.4 litres, so A is false. The mass of one mole of a gas, in grams, is numerically equal to its molecular mass, so R is true.
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Chapter 5: Mole concept and Stoichiometry - MISCELLANEOUS EXERCISE [Page 101]
