As per Mohs's scale, the hardnesses of Corundum & Diamond (in that order) ?

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Kiran Rapria

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📊 Geotechnical Engineering

Q. As per Mohs's scale, the hardnesses of Corundum & Diamond (in that order) ?

(A) 9 & 8
(B) 8 & 9
(C) 9 & 10
(D) 10 & 9

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✅ Correct Answer: (C) 9 & 10

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