Assertion: Diamond is a bad conductor.Reason: | vedclass

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(B) Diamond is a bad conductor because all $4$ valence electrons of carbon are involved in $sp^3$ covalent bonding,leaving no free electrons.Graphite

Vedclass · Accepted Answer

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

Vedclass · Answer

(B) Diamond is a bad conductor because all $4$ valence electrons of carbon are involved in $sp^3$ covalent bonding,leaving no free electrons.Graphite is a good conductor of electricity because each carbon atom is $sp^2$ hybridized,leaving one free electron per carbon atom in its lattice.Both the Assertion and the Reason are correct statements,but the fact that graphite is a good conductor does not explain why diamond is a bad conductor. Therefore,the Reason is not the correct explanation of the Assertion.

Assertion: Diamond is a bad conductor.
Reason: Graphite is a good conductor.

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Assertion: Diamond is a bad conductor.Reason: Graphite is a good conductor.