1.

Which one does not give cannizzaro's reaction

Answer»

Benzaldehyde
2-methyl propanal
p-methoxy benzaldehyde
2,2-dimethyl propanal

SOLUTION :ALDEHYDE, which does not have the `alpha-H` atoms, gives Cannizzaro's reaction on heating with conc. Alkali solution (50%)

`underset(alpha-H-"atom absent")(CH_(3)OVERSET(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-CHO)underset(alpha-H-"atom absent")(HCHO)`


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