C

Chandan Das • 6.78K Points
Tutor III Chemistry

  • (A) Diamond
  • (B) Graphite
  • (C) Coke
  • (D) Lamp black
Correct Answer - Option(A)

Explanation by: Chandan Das
Diamond is a well known allotrope of carbon. The hardness and high dispersion of light of diamond make it useful for both industrial applications and jewelry. Diamond is the hardest known natural mineral. 

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