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प्रश्न
Which of the following does not give Cannizzaro reaction?
पर्याय
(CH3)3C – CHO
(CH3)2 CH – CHO
HCHO
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उत्तर
(CH3)2 CH – CHO
Explanation:
Aldehydes which do not have an α-hydrogen atom, undergo self-oxidation and reduction (disproportionation) reaction on heating with concentrated alkali. Such reactions are known as Cannizzaro reactions.
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\[\begin{array}{cc}
\ce{D}\phantom{........................}\\
|\phantom{.........................}\\
\ce{2D - C = O + OH^- ->[Cannizzaro] X and Y}
\end{array}\]
(Y is alcohol, D is deuterium)
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