Q.

Find out the correct statement from the options given below for the above 2 reactions.            [2023]

1 Reactions (I) and (II) both are of 2nd order  
2 Reactions (I) and (II) both are of 1st order  
3 Reaction (I) is of 1st order and reaction (II) is of 2nd order  
4 Reaction (I) is of 2nd order and reaction (II) is of 1st order  

Ans.

(3)

Reaction I will proceed by SN1, required stable carbocation that is supported by -OMe while reaction II will proceed by SN2 supported by -NO2.