B) Mixture of conc. $H_{2}SO_{4}\ and\ conc.HNO_{3}$
C) Mixture of nitric acid and anhydrous zinc chloride
D) None of the above
Explanation
(b)
Nitrating, mixture is conc. $HNO_{3} + conc.H_{2}SO_{4}$.
It produces $NO_{2}^{+}$ electrophile which carried out electrophilic substitution reaction.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.