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NEETChemistryp Block Elements (Group 13 & 14)

Why is diamond considered the hardest substance on Earth?

Options

  1. ABecause it is composed of a single element
  2. BBecause of its high melting point
  3. CBecause of its extended covalent bonding and difficulty to break
  4. DBecause of its high density

Correct answer

C. Because of its extended covalent bonding and difficulty to break

Step-by-step solution

Diamond is considered the hardest substance on Earth because of its extended covalent bonding, which is difficult to break.

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