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Rates of diffusion of H(2),D(2),HD and ...

Rates of diffusion of `H_(2),D_(2),HD` and He gases will be in the order:

A

`HegtH_(2)gtHDgtD_(2)`

B

`HDgtD_(2)=HeltH_(2)`

C

`D_(2)gtHe=HDltH_(2)`

D

`H_(2)gtHDgtD_(2)=He`

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