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Vapour density of a volatile substance i...

Vapour density of a volatile substance is ` 4 (O_(2)= 1). ` Its molecular weight would be 

A

8

B

2

C

64

D

128

Text Solution

Verified by Experts

The correct Answer is:
D
If the vapour density of `O_(2)` is taken as 1 , then V.D of the O.C . = 4 .
As the actual V.D of `O_(2) = 32//2 = 16`
`therefore` Actual V.D of O.C = `16 xx 4 = 64`.
Hence molecular mass of O.C = `2 xx 64 = 128`
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