All of the given substrates undergo 
reaction. Choose the correct order for decreasing regarding 
reaction.
A
IV 
I 
II 
III
I II III B
I 
IV 
II 
III
IV II III C
I 
II 
III 
IV
II III IV D
I 
III 
IV 
II
III IV II
Text Solution
Verified by ExpertsThe correct answer is:
A
Use concept of resonance and aromaticity to check stability order. The 
reaction proceeds through carbocation mechanism. Hence, more stable carbocation undergoes 
l reaction more easily.The stability of carbocation are as follows
Thus, the correct order of reactants towards 
reaction is as follows
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