13.18 Arrange benzene, n-hexane and ethyne in decreasing order of acidic behaviour. Also give reason for this behaviour.
As the character increases, the electronegativity of the carbon atom also increases. As a result, there is a development of partial charges in the C-H bond.
increasing order of character-
More is the character, more is the acidic nature of the compound.
So, the decreasing order of acidic behaviour is-
ethyne(50% ) >benzene(33% ) > hexane(25% )