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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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\[\begin{array}{cc}
\ce{C6H5CHO}\phantom{............}\\
\phantom{........}\ce{+\phantom{......}\ce{->[dil.NaOH][\Delta]}}\phantom{...}\\
\ce{CH3CH2CHO}\phantom{............}
\end{array}\]
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