`underset("Benzoic acid")underset()(C_(6)H_(5)COOH)overset(LiAIH_(4))underset("Reduction")rarrunderset("Benzylalcohol")underset()(C_(6)H_(5)CH_(2)OH)overset("P"C"C")underset("Controlled oxidation")rarrunderset("Benzelddehyde")underset()(C_(6)H_(5)CHO)`