Which of the following reactions converts the carbonyl group of aldehydes and ketones to a methylene group on treatment with zinc amalgam and concentrated $HCl$?
- AWolff-Kishner reduction
- BStephen reduction
- CClemmensen reduction
- DRosenmund reduction
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Similar Questions
An organic compound $A$ is oxidized using acidified $K_2Cr_2O_7$ solution to form compound $B$. Compound $B$ gives the $DNP$ test but not the silver mirror test. Then,compound $A$ is:
Medium
View SolutionWhich of the following compounds undergo Cannizzaro reaction?
$(a)$ $HCHO$
$(b)$ $C_6H_5-CHO$
$(c)$ $CH_3-C(CH_3)_2-CHO$
$(d)$ $Ph-CH_2-CHO$
$(a)$ $HCHO$
$(b)$ $C_6H_5-CHO$
$(c)$ $CH_3-C(CH_3)_2-CHO$
$(d)$ $Ph-CH_2-CHO$
Difficult
View SolutionThe reaction shown below is called:
$CH_3-CHO + 4[H] \xrightarrow{Zn-Hg / \text{conc. } HCl} CH_3-CH_3 + H_2O$
$CH_3-CHO + 4[H] \xrightarrow{Zn-Hg / \text{conc. } HCl} CH_3-CH_3 + H_2O$
$P \xrightarrow{H_2 / Pd-BaSO_4} Q \xrightarrow{(i) \text{ conc. } NaOH} R + S$. $R$ and $S$ form benzyl benzoate when treated with each other. Hence,$P$ is
DifficultKCET 2019
View SolutionThe reaction $CH_3CHO \xrightarrow[Zn(Hg)/Conc. HCl]{[H]} CH_3CH_3$ is known as:
Difficult
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