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M

Mr. Dubey • 100.64K Points
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Q. On Moh's scale, materials with hardness number less than 4 are

  • (A) Topaz, Corundum, Diamond
  • (B) Hardened and tempered
  • (C) Felspar, corundum, Diamond
  • (D) Talc, gypsum, calcite
  • Correct Answer - Option(D)
  • Views: 939
  • Filed under category Metallurgy
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