Questions

The vapour density of a gas A is twice that of a gas B. If the molecular weight of B is M, the molecular weight of A will be :

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a

M

b

2M

c

3M

d

$\frac{M}{2}$

detailed solution

Correct option is B

We have

Molar mass= 2 times the vapour density

Mass is given as M. Thus, the value of vapour density,

=$\frac{M}{2}$

Also, given that vapour density of A is four time that of B, th

Thus, the vapour density can be given as,

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