Question

Identify the substance that is used to cut glass.

• A. Fullerene
• B. Diamond
• C. Gas carbon
• D. Bone charcoal

Answer 1

The correct option is B

Diamond

Explanation for the correct option:

(B) To cut the glass one requires a hard substance that can easily exert the force needed for cutting. Diamond is the hardest naturally occurring material known to have a rigid structure, which makes it extremely tough and hence perfectly suited to be used as a cutting tool.

Explanation for incorrect options:

Fullerene, gas carbon, and bone charcoal are soft. Therefore they can't be used to cut glass.

Thus, option ‘B’ is correct. Diamond is the substance that is used to cut glass.