A) \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHO\]
B) \[{{C}_{6}}{{H}_{5}}CHO\]
C)
D)
Correct Answer: A
Solution :
Key Idea Benzoin condensation reaction is given by aromatic aldehydes in which \[-CHO\]group is directly linked to the benzene nucleus. In \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}CHO\] the \[-CHO\] group is not attached directly to the benzene nucleus. So, it does not undergo benzoin condensation. While in , and the \[-CHO\] group is directly linked to benzene nucleus. So, these compound undergo benzoin condensation. Note- In benzoin condensation two molecules of aromatic aldehyde, on heating in the presence of ethanolic KCN get condensed to form benzoin.
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