What absorption is diagnostic of benzophenone and not present in benzhydrol (give frequency and functional group) ; and what absorption is diagnostic of benzhydrol and not present in benzophenone?
a) Benzophenone: 1680 cm⁻1, Carbonyl C=O; Benzhydrol: 3400 cm⁻1, Hydroxyl O-H
b) Benzophenone: 3400 cm⁻1, Hydroxyl O-H; Benzhydrol: 1680 cm⁻1, Carbonyl C=O
c) Benzophenone: 1730 cm⁻1, Carbonyl C=O; Benzhydrol: 3400 cm⁻1, Hydroxyl O-H
d) Benzophenone: 3400 cm⁻1, Hydroxyl O-H; Benzhydrol: 1730 cm⁻1, Carbonyl C=O
