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Question: Answered & Verified by Expert
The hardest substance is
Chemistryp Block Elements (Group 13 & 14)JIPMERJIPMER 2005
Options:
  • A iron
  • B steel
  • C diamond
  • D graphite
Solution:
1109 Upvotes Verified Answer
The correct answer is: diamond
The hardest substance in the nature is diamond due to complex tetrahedral structure.

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