| Chlorobenzene can be converted into phenol by heating in aqueous sodium hydroxide solution at a temperature of 623 K and a pressure of 300 atm. However the rate of reaction can be increased by presence of certain groups in benzene ring. What will be the order of reactivity of following compounds towards the above substitution reaction? |
 |
(i)  |
(ii)  |
(iii)  |
A) (iii) > (ii) > (i)
B) (ii) > (iii) > (i)
C) (i) > (ii) > (iii)
D) (i) > (iii) > (ii)
Correct Answer: A
Solution :
The presence of an electron withdrawing group \[\left( -N{{O}_{2}} \right)\] at ortho and para-positions increases the reactivity of haloarenes.
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