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Materials science (SiC): In which application is silicon carbide (SiC) commonly used? Consider its hardness, thermal stability, and electrical properties. Choose the correct application.

Difficulty: Easy

As an abrasive in grinding and cutting tools
As a household disinfectant
As a food preservative
As a low-melting solder alloy

Correct Answer: As an abrasive in grinding and cutting tools

Explanation:

Given data

Material: Silicon carbide (SiC).

Concept/Approach
SiC is extremely hard, chemically inert, and thermally stable, making it ideal for abrasives (grinding wheels, sandpapers), high-temperature refractories, and certain semiconductor devices.

Final Answer
As an abrasive in grinding and cutting tools

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