A gas has a vapour density twice that of . The molecular weight of is: | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Question

A gas $X$ has a vapour density twice that of $CH_4$. The molecular weight of $X$ is:

Answer: A

💡 Solution & Explanation

$\text{MW of } CH_4 = 16$. $\text{VD of } CH_4 = 8$. $\text{VD of X} = 16$. $\text{MW of X} = 2 \times 16 = 32$.

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