Question:
Which of the following does not answer iodoform test?
Which of the following does not answer iodoform test?
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Which of the following does not answer iodoform test?
Updated On: Apr 15, 2026
- n-butyl alcohol
- Acetophenone
- Acetaldehyde
- Ethylmethyl ketone
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Requirement
The iodoform test is given by compounds containing either a $CH_{3}CO-$ (methyl ketone) group or a $CH_{3}CH(OH)-$ (methyl carbinol) group.
Step 2: Analysis
- Acetophenone ($CH_3COC_6H_5$), Acetaldehyde ($CH_3CHO$), and Ethylmethyl ketone ($CH_3COC_2H_5$) all contain the $CH_{3}CO-$ group. - n-butyl alcohol ($CH_{3}CH_{2}CH_{2}CH_{2}OH$) lacks both required groups.
Step 3: Conclusion
n-butyl alcohol does not answer the iodoform test.
Final Answer: (A)
The iodoform test is given by compounds containing either a $CH_{3}CO-$ (methyl ketone) group or a $CH_{3}CH(OH)-$ (methyl carbinol) group.
Step 2: Analysis
- Acetophenone ($CH_3COC_6H_5$), Acetaldehyde ($CH_3CHO$), and Ethylmethyl ketone ($CH_3COC_2H_5$) all contain the $CH_{3}CO-$ group. - n-butyl alcohol ($CH_{3}CH_{2}CH_{2}CH_{2}OH$) lacks both required groups.
Step 3: Conclusion
n-butyl alcohol does not answer the iodoform test.
Final Answer: (A)
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