Vapour density of a volatile substance is 4 (CH4 7. = 1). Its molecular weight would be: A. 2 B. 8 C. 64 D. 128

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Muskan Anand

2 years ago

Actual vapour density of methane = Molecular weight / 2 = 16/2 = 8 Vapour density of volatile substance = 8×4= 32 Molecular weight of the substance = 32×2 = 64

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