(a)
Chloroform reacts with conc. $HNO_{3}\$to give chloropicrin which is used as tear gas.
$CHCl_{3} + HNO_{3}\overset{\ \ \ \ \ \mathrm{\Delta}\ \ \ \ \ }{\rightarrow}CCl_{3}NO_{2} + H_{2}O$
chloropicrin
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.