Which of the following reasons rightly explain why Diamond is harder than graphite?

Options :
  1. Due to the difference of layers of atoms
  2. Due to the tetrahedral structure of diamond
  3. Due to the difference of crystalline structures
  4. None of these
Answer and Explanation :-

Answer: Option 3


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Until the day when God will deign to reveal the future to man, all human wisdom is contained in these two words,-'Wait and hope.'" Chapter 7
-Alexandre Dumas The Count of Monte Cristo