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If the order of critical temperature for...

If the order of critical temperature for `He,O_2,N_2 and CH_4` is `He lt N_2 lt O_2 lt CH_4` , then which of the give gases would be least adsorbed by charcoal?

A

`He`

B

`O_2`

C

`N_2`

D

`CH_4`

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