Assertion: Isobutanal does not give iodoform test.
Reason : It does not have `alpha`-hydrogen.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If the assertion and reason both are false.

Answer

C

Explanation

Isobutanol has `alpha`-hydrogen atom.
Acetaldehyde, acetone and methyl ketones having `CH_3CO`–group undergo haloform reaction. The halogen atoms of the methyl group are first replaced by hydrogen atoms. This reaction is used as a test of `CH_3CO`–group. Due to absence of `CH_3CO`–group isobutanal does not give iodoform test.