Preparation From Alcohols
When ethanol is heated with concentrated HBr, the major organic product formed is:
Select the correct option:
Solution
Bromoethane
Concentrated HBr converts alcohols to alkyl bromides by substituting the -OH group with Br. Therefore ethanol gives bromoethane as the main product. Ethene may form under strong dehydration conditions, but substitution with HBr is the expected major pathway here.
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About This Question
- Subject
- chemistry
- Chapter
- organic compounds containing halogens
- Topic
- preparation from alcohols
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Bromoethane
Concentrated HBr converts alcohols to alkyl bromides by substituting the -OH group with Br. Therefore ethanol gives bromoethane as the main product. Ethene may form under strong dehydration conditions, but substitution with HBr is the expected major pathway here.
This easy difficulty chemistry question is from the chapter organic compounds containing halogens, covering the topic of preparation from alcohols. It appeared in the 2025 exam.
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