Directions: (Q. 21 to 25) |
Case V: Read the passage given below and answer the following questions. |
Haloarenes are less reactive than haloalkanes. |
The low reactivity ofhaloarenes can be attributed to |
- resonance effect |
- \[s{{p}^{2}}\] hybridisation of C-X bond |
- polarity of C-X bond |
- instability of phenyl cation (formed by self- ionisation of haloarene) |
- repulsion between the electron rich attacking nucleophiles and electron rich arenes. |
Reactivity of haloarenes can be increased or decreased by the presence of certain groups at certain positions for example, nitro \[\left( -N{{O}_{2}} \right)\]group at o/p positions increases the reactivity of haloarenes towards nucleophilc substitution reactions. |
A) the formation of less stable carbonium ion
B) resonance stabilization
C) larger carbon-halogen bond
D) inductive effect.
Correct Answer: B
Solution :
resonance stabilizationYou need to login to perform this action.
You will be redirected in
3 sec