Question:
Arrange benzene, n-hexane and ethyne in decreasing order of acidic behaviour. Also give reason for this behaviour.
Answer:
Ethyne>Benzene> n-hexane.
The C-H bonds are formed by sp, sp2 and sp3 hybridization respectively. Carbon with sp hybridized is more electronegative than sp2, which in turn is more electronegative than sp3 hybridized carbon.
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