Hardest substance known is___________??? 1. Diamond 2. graphite 3. alloy of tin and iron 4. enamel of tooth

ans is________

• Vishalraj
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• 332 Answers

• 1

  • Gaurav
  • 16 Jul
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• 1

  • Ashanur
  • 14 Jul
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• diamond

  • Bhargavi
  • 13 Jul
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  0

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• enamel of tooth

  • Chaitanya
  • 09 Jul
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  0

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• Graphite

  • Lovepreet
  • 08 Jul
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  0

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• Diamond

  • Srijit
  • 08 Jul
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  0

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• diamond

  • Zulqar
  • 03 Jul
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  8

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• diamond

  • Soumya
  • 03 Jul
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  10

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• diamond

  • Kanwer
  • 01 Jul
  • 0 Comment

  0

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• Diamond

  • Anurag
  • 30 Jun
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  0

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• Diamond

  • Muzam
  • 30 Jun
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  0

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• 1

  • Pradhumn
  • 29 Jun
  • 0 Comment

  0

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• diamond-covalent solid

  • Poonam
  • 23 Jun
  • 0 Comment

  0

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• heera

  • Piyush
  • 17 Apr
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  0

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• diamond

  • Pooja
  • 16 Apr
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  0

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• 1

  • Sorna
  • 16 Apr
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  0

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• diamond

  • Shivani
  • 15 Apr
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  0

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• daimond

  • Saema
  • 14 Apr
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  3

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• diamond

  • Ekta
  • 10 Apr
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  3

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• 1

  • Kiran
  • 10 Apr
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