Correct option is A
CHCl3 is the Chemical Formula of Chloroform.
It contains one carbon atom (C), one hydrogen atom (H), and three chlorine atoms (Cl), which makes it CHCl3, also known as trichloromethane. It is colorless, heavy, and sweet-smelling organic compound.It is used as a general anesthetic, production of refrigerants, solvents, and pesticides.