KCET 2021 Chemistry Solved Paper

The decreasing order of acidic behaviour is ethyne > benzene >n-hexane
Because carbon in ethyne, benzene and n-hexane are sp,sp2 and sp3 hybridised respectively. ∴ The carbocation formed after the removal of 'H'
is more stable in sp hybridised carbon atom because of high electronegativity due to more s-character.