Question

The reaction given below required which of the following reaction conditions:

• A. 623 K, 300 atm
• B. 573 K, 300 atm
• C. 573 K, Cu, 300 atm
• D. 623 K, Cu 300 atm

Answer 1

The correct option is A 623 K, 300 atm

Answer: (a)
Chlorobenzene on reaction with $NaOH$ at $623K$ and $300atm$ will give sodium phenoxide.
This reaction is called Dow's process.
This reaction occurs via benzyne intermediate.