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प्रश्न
Identify A and B:
विकल्प
A = 1-phenylethanal , B = acetophenone
A = Benzophenone B = formaldehyde
A = Benzaldehyde , B = Acetophenone
A = Benzophenone, B = Acetophenone
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उत्तर
A = Benzaldehyde , B = Acetophenone
Explanation:
This is an example of crossed Aldol condensation. When aldol condensation is carried out between two different aldehydes and/or ketones, it is called cross aldol condensation.
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(i) \[\ce{CH3 - CHO}\]
(ii) 
(iii) \[\begin{array}{cc}
\phantom{}\ce{O}\\
\phantom{}||\\
\ce{CH3 - C - CH3}
\end{array}\]
(iv) \[\begin{array}{cc}
\phantom{}\ce{CH3}\\
|\phantom{...}\\
\ce{CH3 - C - CHO}\phantom{..}\\
|\phantom{...}\\
\phantom{}\ce{CH3}\\
\end{array}\]
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