Materials and Components

Assertion (A): Diamond and carborudum are both very hard materials. Reason (R): Valence band can be extremely strong.

A Both A and R are true and R is correct explanation of A

B Both A and R are true but R is not correct explanation of A

C A is true but R is false

D A is false but R is true

ANS:A - Both A and R are true and R is correct explanation of A

Valence bond results in hardness.

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