1.

`CH_(2)=CH^(-)` is more basic than `HC -= C^(-)`. Explain why ?

Answer» `CH_(2) = overset(sp^(2))(C)H^(-) " " HC -= overset(sp)(C^(-))`
Since, sp-carbon is more electronegative than `sp^(2)`-carbon, therefore, `CH -= C^(-)` is less willing to donate a pair of electrons than `H_(2)C = CH^(-)`. In other words, `H_(2)C = CH^(-)` is more basic than `HC -= C^(-)`.


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