Question

When p-nitrobromobenzene reacts with sodium ethoxide, the product obtained is

• A. p-nitroanisole
• B. ethyl phenyl ether
• C. p-nitrophenetole
• D. no reaction occurs

Hint:

Aryl halides with strong \(-NO_2\) at ortho/para undergo SNAr with nucleophiles like \(RO^-\), forming aryl ethers.

Answer 1

The Correct Option is C

Step 1: Reaction type (Nucleophilic substitution).
p-nitrobromobenzene has a strong electron withdrawing \(-NO_2\) group at para position.
This activates benzene ring towards nucleophilic substitution (SNAr).
Step 2: Role of sodium ethoxide.
Sodium ethoxide \((C_2H_5O^-Na^+)\) acts as nucleophile.
It replaces bromine on aromatic ring.
Step 3: Product formed.
Replacement of Br by \(-OC_2H_5\) gives p-nitrophenetole.
Final Answer: \[ \boxed{\text{p-nitrophenetole}} \]