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Which among CH(4), SiH(4), GeH(4), and S...

Which among `CH_(4), SiH_(4), GeH_(4)`, and `SnH_(4)` is the most volatile?

A

`CH_(4)`

B

`SiH_(4)`

C

`GeH_(4)`

D

`SnH_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
They are all covalent hydrides consisting of discrete molecules which are held together by the weak van der Waals forces. The magnitude of these forces is directly related to the molecular mass, which increases as we move down the group. Thus, the correct order of volatility is
`CH_(4) gt SiH_(4) gt GeH_(4) gt SnH_(4)`
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