Question Detail

CHM 102 Synthesis and Reactions of Alcohols & Phenols | General Organic Chemistry Objective Question
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Question

Which alcohol gives a positive iodoform test (yellow precipitate)?
Options
A methanol
B ethanol
Correct Answer
C 2-methyl-2-propanol
D 1-butanol
Correct Answer

Option B is the correct answer.

Detailed Explanation

Ethanol and secondary alcohols with a methyl group on the carbinol carbon (CH3CHOH-R) give the iodoform test. Ethanol is oxidized to acetaldehyde, which gives iodoform.

Hint

This test identifies the CH3-CHOH- group.

Question Info

Course: CHM 102
Topic: Synthesis and Reactions of Alcohols & Phenols | General Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 23 of 1999
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