Question

Which of the following tests gives a positive test with acetone but not with acetaldehyde?

• A. Iodoform test
• B. Schiff test
• C. Brady's test
• D. Sodium nitroprusside test

Answer 1

The correct option is D Sodium nitroprusside test

(a) Acetone and acetaldehyde both gives positive iodoform test.
(b) Schiff test is given by acetaldehyde but not by acetone.
(c) Brady's test is 2,4-DNP test. It is a test for both aldehydes and ketones.
(d) Sodium nitroprusside gives a bright red color with methyl ketones but it does not react with aldehydes.