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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketonesChemical Reactions of Carbonyl compounds

shows Cannizzaro’s reaction due to

A.carbon is bounded by 3 methyl groups✓ Correct
B.absence of α-hydrogen atom
C.due to steric effect
D.None of the above
Explanation

The aldehydes that do not have훼−퐻푦푑푟표푔푒푛 can undergo disproportionation reaction, i.e., self oxidation and reduction reaction. This reaction is Cannizzaro reaction. So, the given compound should not have alpha-hydrogen. Hence in the given compound the alpha carbon have methyl groups so, it will show Cannizzaro’s reaction. 102. The following reagent converts C6H5COCHO to C6H5CHOHCOOH (a) Aq. NaOH/H+ (b) Acidic Na2S2O3 (c) Na2CrO4/H2SO4 (d) NaNO2/HCl The aldehydes that do not have 훼−퐻푦푑푟표푔푒푛 can undergo disproportionation reaction, i.e., self oxidation and reduction reaction. This reaction is C

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