Q. Carborundum is obtained when silica is heated at high temperature with
A) Carbon
B) Carbon monoxide
C) Carbon dioxide
D) Calcium carbonate
Explanation
(a)
Silica on heating with carbon at high temperature gives carborundum (silicon carbide)
$\ \ \ \ \ \ \ \ SiO_{2} + 3C\overset{\ \ \ \mathrm{\Delta}\ \ \ \ }{\rightarrow}SiC + 2CO$
carborundum
Carborundum is very hard substance.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.