Multiple choice

Among the following _________ is used in tank armour and bulletproof vests.

  1. Boron carbide

  2. Boron nitride

  3. Boron trifluoride

  4. Boron trichloride

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Boron carbide is an extremely hard boron-carbon ceramic material used in tank armour, bulletproof vests, and numerous industrial applications. With a Mohs hardness of above 9, it is one of the hardest materials known, behind cubic boron nitride and diamond.