(b)
Halon-1301 is $CF_{3}Br$. The first figure 1 represents no. of C atoms, the second figure represents no. of F atoms, the third figure 0 represents the no. of $Cl$ atoms and last figure 1 represents the Br atom
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.