Question:
Which of the following compound can give positive iodoform test when treated with aqueous KOH solution followed by potassium hypoiodite.
Which of the following compound can give positive iodoform test when treated with aqueous KOH solution followed by potassium hypoiodite.
Updated On: Feb 3, 2026
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The Correct Option is B
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The iodoform test is a chemical reaction used to identify the presence of methyl ketones (a ketone with a methyl group, \(-COCH_3\)) or specific alcohols that can be oxidized to methyl ketones. The reaction involves the compound being treated with aqueous potassium hydroxide (KOH) followed by potassium hypoiodite (KI/I2 solution).
To determine which compound among the given options can give a positive iodoform test, we need to check for the presence of the \(-COCH_3\) group or an alcohol that can be oxidized to it.
- Examine each compound:
- Compound 1: Does not have the \(-COCH_3\) group or an alcohol group that can be oxidized to give it.
- Compound 2: Contains a methyl ketone group (\(-COCH_3\)), which fits the criteria for the iodoform test.
- Compound 3: Does not have the \(-COCH_3\) group and cannot be oxidized to form one.
- Compound 4: Also lacks the \(-COCH_3\) group and cannot be easily oxidized to form one.
- Thus, Compound 2 is the only one that can give a positive iodoform test because it contains the necessary methyl ketone group.
Thus, the correct answer is Compound 2
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The correct answer is (2)
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