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KH value for Ar(g), CO2(g), HCHO(g) and ...

`K_H value for Ar(g), CO_2(g), HCHO(g) `and` CH_4(g)` are `40.39, 1.67, 1.83 xx 10^-5` and `0.413` respectively. Arrange these gases in the order of their increasing solubility.

A

`HCHO lt CH_4 lt CO_2 lt Ar`

B

`HCHO lt CO_2 lt CH_4 lt Ar`

C

`Ar lt CO_2 lt CH_4 lt HCHO`

D

`Ar lt CH_4 lt CO_2 lt HCHO`

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