COMEDK · Chemistry · 26. Alcohols Phenols and Ethers
Which one of the following compounds will give a yellow precipitate when reacted with \(\mathrm{I}_2 / \mathrm{NaOH}\) ?
- A \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH}\)
- B \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{OH}\)
- C \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}\)
- D \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CHOH}-\mathrm{CH}_3\)
Answer & Solution
Correct Answer
(D) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CHOH}-\mathrm{CH}_3\)
Step-by-step Solution
Detailed explanation
The iodoform test is given by compounds containing the \(\mathrm{CH}_3\mathrm{CO}-\) group or the \(\mathrm{CH}_3\mathrm{CH(OH)}-\) group. These groups are oxidized to the methyl ketone group, which then reacts with \(\mathrm{I}_2 / \mathrm{NaOH}\) to form a yellow precipitate…
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