| (I) \[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{2}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\] | (II) \[{{C}_{6}}{{H}_{5}}-C{{H}_{2}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\] |
| (III) \[C{{H}_{3}}-CHO\] | (IV) \[{{C}_{6}}{{H}_{5}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\] |
A) Only IV
B) III and IV
C) III and IV
D) All of these
Correct Answer: C
Solution :
In (I) and (II) the hydrogen atom of?CH3 group is not attacked by the base rather more acidic H-atom about two carbonyl group in (I) and methylene H-atom about phenyl group in (II) is attacked.
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