The reagent which can be used to distinguish acetopheone from benzophenone is :

Options

A. 2,4-dinitrophenyl hydrazine
B. aqueous solution of `NaHSO_3`
C. Benedict reagent
D. `I_(2) and Na_(2)CO_(3)`

Answer

D

Explanation

The structure of acetophenone and benzophenone are

When acetophenone containing `CH_(3)-overset(O)overset(||)(C)-`unit, is treated with `I_(2)` and `Na_(2)CO_(3)` it forms yellow precipitate of `CHI_(3)` whereas benzophenone does not give this test. Acetophenons gives iodoform test due to presence of `-COCH_(3)` group.