WBCS.LIVE practice question

Which is the hardest naturally occurring substance on Earth?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Gold
  2. Iron
  3. Diamond
  4. Platinum

Correct answer and explanation

Correct answer: Diamond

Explanation: āœ… Correct Answer: C) Diamond šŸ“š Explanation: Diamond is an allotrope of carbon where each atom is bonded to four others in a strong tetrahedral lattice structure. This unique covalent bonding makes it exceptionally hard and resistant to scratching. Because of this property, diamonds are used extensively in industrial cutting, grinding, and drilling tools.