MCQ
Which compound can exist in a dipolar (zwitter ion) state
- A${C_6}{H_5}C{H_2}CH(N = C{H_2})COOH$
- ✓${(C{H_3})_2}CH.CH(N{H_2})COOH$
- C${C_6}{H_5}CONHC{H_2}COOH$
- D$HOOC.C{H_2}C{H_2}COCOOH$
✓
Answer
Correct option: B.
${(C{H_3})_2}CH.CH(N{H_2})COOH$
b
(b)${(C{H_3})_2}.\,CH.\mathop {\mathop {CH\,\,}\limits_{|\,\,\,\,\,\,\,\,} }\limits_{N{H_2}} - COOH$ $\rightleftharpoons $ ${{(C{{H}_{3}})}_{2}}-CH.\underset{N{{H}_{3}}^{+}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-CO{{O}^{-}}}}\,}}$
(b)${(C{H_3})_2}.\,CH.\mathop {\mathop {CH\,\,}\limits_{|\,\,\,\,\,\,\,\,} }\limits_{N{H_2}} - COOH$ $\rightleftharpoons $ ${{(C{{H}_{3}})}_{2}}-CH.\underset{N{{H}_{3}}^{+}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CH-CO{{O}^{-}}}}\,}}$
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