Which of the following does not answer iodoform test?
Correct answer: A. n-butyl alcohol
- A. n-butyl alcohol
- B. Sec-butyl alcohol
- C. Acetophenone
- D. Acetaldehyde
Explanation
The correct answer is a) n-butyl alcohol. It does not answer the iodoform test because it lacks the necessary functional group. The other options, sec-butyl alcohol, acetophenone, and acetaldehyde, can undergo the iodoform test as they contain a methyl group adjacent to a carbonyl group, resulting in the formation of iodoform precipitates.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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