Question
Chemistry Question on p -Block Elements
Carborundum is obtained when silica is heated at high temperature with
A
carbon
B
carbon monoxide
C
carbon dioxide
D
calcium carbonate
Answer
carbon
Explanation
Solution
Silica on heating with carbon at elevated temperature, gives carborundum (silicon carbide) {SiO_2 + 3C ->[\Delta]\underset{\text{ carborundum}}{ { SiC}} + 2CO } Carborundum is a very hard substance.