Liquid Solution

If the \(K_{\mathrm{H}}\) values for \(\operatorname{Ar}(g), \mathrm{CO}_2(g), \mathrm{HCHO}(g)\) and \(\mathrm{CH}_4(\mathrm{~g})\) respectively are \(40.39,1.67, 1.83 \times 10^{-5}\) and \(0.413\) , then identify the correct increasing order of their solubilities.