Multiple choice

In which of the following activities is silicon carbide used?

  1. Making cement and glass

  2. Disinfecting water and ponds

  3. Making castes for statues

  4. Cutting very hard substances
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Silicon carbide (SiC) is one of the hardest synthetic materials, ranking just below diamond on the Mohs scale. It's extensively used as an abrasive for cutting and polishing very hard substances like glass, ceramics, and other carbides. The other options don't match SiC's primary applications.

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