Wurtz Reaction
Easychemistry
Coupling of two molecules of 1-bromopropane with sodium (dry ether) gives main hydrocarbon:
Select the correct option:
Solution
Incorrect! Answer:
Hexane
- Wurtz Reaction Definition: Treatment of alkyl halides with Sodium in dry ether yields a higher alkane with double the number of carbon atoms.
- Reactant: 1-Bromopropane (CH3−CH2−CH2−Br). Number of carbons (n=3).
- Symmetry: 2×R−Br+2Na→R−R+2NaBr.
- The Alkyl Group (R): CH3−CH2−CH2− (Propyl group).
- Combination: C3H7+C3H7→C6H14 (n-Hexane).
- Final count: 3+3=6 carbons.
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About This Question
- Subject
- chemistry
- Chapter
- hydrocarbons
- Topic
- wurtz reaction
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Hexane
- Wurtz Reaction Definition: Treatment of alkyl halides with Sodium in dry ether yields a higher alkane with double the number of carbon atoms.
- Reactant: 1-Bromopropane (CH3−CH2−CH2−Br). Number of carbons (n=3).
- Symmetry: 2×R−Br+2Na→R−R+2NaBr.
- The Alkyl Group (R): CH3−CH2−CH2− (Propyl group).
- Combination: C3H7+C3H7→C6H14 (n-Hexane).
- Final count: 3+3=6 carbons.
This easy difficulty chemistry question is from the chapter hydrocarbons, covering the topic of wurtz reaction. It appeared in the 2025 exam.
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