Carborundum consists mainly of_________________?
Correct answer: C. Silicon carbide
- A. Bauxite
- B. Boron carbide
- C. Silicon carbide
- D. Calcium carbide
Explanation
Carborundum is the commercial name for silicon carbide, SiC, a very hard abrasive material. It is not a carbide of boron, calcium, or aluminium ore.
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