question_answer

\[C{{H}_{3}}CHO+HCHO\xrightarrow[Heat]{Dil.\,NaOH}A\xrightarrow[{{H}_{2}}{{O}^{+}}]{HCN}B\] The structure of compound B is

A) \[C{{H}_{2}}=CH-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-COOH\]

B)        \[C{{H}_{2}}=CH-\underset{CN}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-OH\]

C)        \[C{{H}_{3}}C{{H}_{2}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-COOH\]

D)        \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-COOH\]