Q. Which one of the following is a covalent crystal?
A) Rock salt
B) Ice
C) Quartz
D) Dry ice
Explanation
(c)
Quartz $\left( SiO_{2} \right)$ is a covalent crystal.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.