KH values for Ar(g),CO2(g),HCHO(g) and CH4(g) are 40.39,1.67,1.83×10−5 and 0.413 respectively. Arrange these gases in the order of their increasing solubility ?
A
HCHO<CH4<CO2<Ar
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B
HCHO<CO2<CH4<Ar
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C
Ar<CO2<CH4<HCHO
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D
Ar<CH4<CO2<HCHO
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Solution
The correct option is CAr<CO2<CH4<HCHO The solubility of the gas is inversely proportiona to the KH value. Here, Ar gas has the highest KH value so least solubility and HCHO gas has the least KH value so highest solubility.