Electronics and Communication Engineering - Materials and Components - Discussion

1. 

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

Answer: Option A

Explanation:

Valence bond results in hardness.


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