Some Basic Principles Of Organic Chemistry Question 173
Question: Which one of the following species is most stable [IIT-JEE 1995]
Options:
A) $ p-O_2N-C_6H_4-\overset{+}{\mathop{C}},H_2 $
B) $ p-CH_3O-C_6H_4-\overset{+}{\mathop{C}},H_2 $
C) $ p-Cl-C_6H_4-\overset{+}{\mathop{C}},H_2 $
D) $ C_6H_5-\overset{+}{\mathop{C}},H_2 $
Show Answer
Answer:
Correct Answer: B
Solution:
Nitro-group is electron withdrawing therefore decreases stability.
Methoxy group is electron releasing.
Therefore increases stability by donating electron.
Chlorine is also electron withdrawing but its effect is less than $ -NO_2 $ group.
Hence, correct order of stability.
