1.

Which compound can exist in a dipolar (zwitter ion) structure ?

Answer»

`C_6H_5CH_2CH(N=CH_2) COOH`
` (CH_3)_2CHCH(NH_2) COOH`
` C_6H_5CONHCH_2COOH`
` HOOC CH_2CH_2COCOOH`

ANSWER :B


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