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Practice question

MCQ

Question

A gas occupies 5.6 litres at STP. How many moles of the gas are present? (Molar volume at STP = 22.4 litres)

Options

Choose one · Correct answer highlighted

Explanation

Given: A gas occupies 5.6 litres at STP. How many moles of the gas are present? (Molar volume at STP = 22.4 litres) Formula: Number of moles (μ) = fracVolumeMolar volume. Substitution & Calculation: μ = 5.6/22.4 = 0.25 mol. Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.

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