1.

Acidity increases with increasing number of electron - withdrawing substituents on the alpha- carbon. Explain with example.

Answer»

Solution :Acidity increases with increasing NUMBER of electron withdrawing substituents on the `ALPHA `- CARBON atom. For EXAMPLE,
`Cl_3C – COOHgtCl_2CH – COOHgt Cl – CH_2COOH gtCH2COOH`
The effect of various, electron withdrawing GROUPS on the acidity of a carboxylic acid follows the order,
`-NO_2 gtt -CN gt - F gt - Br gt -I gt Ph`


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