Assertion (A): Nitration of benzene with nitric acid requires the use of
concentrated sulphuric acid.
Reason (R): The mixture of concentrated sulphuric acid and concentrated
nitric acid produces the electrophile, NO2+.
(i) Both A and R are correct and R is the correct explanation of A.
(ii) Both A and R are correct but R is not the correct explanation of A.
(iii) Both A and R are not correct.
(iv) A is not correct but R is correct.
Option (i) is correct