A) \[{{C}_{6}}{{H}_{5}}COCO{{C}_{6}}{{H}_{5}}\]
B) \[{{C}_{6}}{{H}_{5}}CHOHCN\]
C) \[{{C}_{6}}{{H}_{5}}CHOHCOOH\]
D) \[{{C}_{6}}{{H}_{5}}CHOHCO{{C}_{6}}{{H}_{5}}\]
Correct Answer: D
Solution :
Key-Idea: When 2 molecules of aromatic aldehydes condense in presence of alc. KCN, it is called benzoin condensation \[\underset{\text{benzaldehyde}}{\mathop{2{{C}_{6}}{{H}_{5}}CHO}}\,\xrightarrow{\text{KCN(alc}\text{.)}}\underset{\text{benzoin}}{\mathop{{{C}_{6}}{{H}_{5}}CHOH-CO-{{C}_{6}}{{H}_{5}}}}\,\]
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