How many among the following compounds will give the above result? i. Cyclohexanone ii. Acetone iii. Propionaldehyde iv. Acetophenone v. Acetaldehyde vi. Benzophenone vii. Benzaldehyde

Step-by-step solution

Positive 2,4 - D N P test ⇒ Carbonyl group. Positive Fehling's test ⇒ Aliphatic aldehyde group. Aromatic aldehydes and ketones do not give Fehling's test. Hence, among the given options, compounds (iii) and (v) will give positive 2,4 - D N P and Fehling's test.