the vapour density of a gas may be defined as

Chemistry

JAMB 1979

A. the mass of a unit volume of the gas compared to an equal volume of water vapour
B. the mass of a unit volume of the gas compared to an equal volume of hydrogen
C. the mass of a unit volume of the gas compared to an equal volume of oxygen
D. the mass of a unit volume of the gas minus the vapour pressure of water
E. two times the relative molecular mass of the gas

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Correct Answer: Option B

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the vapour density of a gas may be defined as

Correct Answer: Option B

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