Plz solve this soon.
Solution -
option 4 gives the most stable carbonium ion or carbocation after the ionisation of C-Cl bond as there become the +ve charge on the carbon atom which is stablised by resonance effect or aromatics character of the benzene ring and this effect is more powerful than the hyperconjugation effect (more no. Of alpha hydrogen ) of the 2nd and 3rd option and also in the 1st option -NO2 group destablise the carbocation by its electron withdrawing nature.
So the option 4 is correct.
option 4 gives the most stable carbonium ion or carbocation after the ionisation of C-Cl bond as there become the +ve charge on the carbon atom which is stablised by resonance effect or aromatics character of the benzene ring and this effect is more powerful than the hyperconjugation effect (more no. Of alpha hydrogen ) of the 2nd and 3rd option and also in the 1st option -NO2 group destablise the carbocation by its electron withdrawing nature.
So the option 4 is correct.