Discussion :: Materials and Components
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Assertion (A): Diamond and carborudum are both very hard materials.
Reason (R): Valence band can be extremely strong.
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A.
Both A and R are true and R is correct explanation of A
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B.
Both A and R are true but R is not correct explanation of A
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C.
A is true but R is false
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D.
A is false but R is true
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Answer : Option A
Explanation :
Valence bond results in hardness.
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