1.

Under identical conditons which of the following pair will be most easy to separate by diffusion process ?

Answer»

`""^(235) UF_(6) ` and `""^(238) UF_(6)`
`H_(2)` and `D_(2)`
`CO_(2)` and `C_(3) H_(8)`
`O_(2)` and `N_(2)`

Answer :B


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