NEET2023Chemistry
Q.
Identify the final product [D] obtained in the following sequence of reactions:

- A
1
- B
2
- C
3
- D
4
Solution
Step (i)–(ii): LiAlH then HO reduces acetaldehyde to ethanol [A].
Step iii: HSO/ dehydrates ethanol to ethene [B].
Step iv: HBr adds across the double bond to give ethyl bromide [C].
Step v: Wurtz–Fittig reaction — ethyl bromide and bromobenzene with Na in dry ether couple to give ethylbenzene [D].
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