Assertion (A) : Diamond is extremely hard while graphite is a soft and slippery solid. Reason (R) : Diamond has a rigid three-dimensional tetrahedral network structure, while graphite has a hexagonal layered structure where layers can slide over each other

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Assertion-ReasonAllotropes of Carbon

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Assertion (A): Diamond is a good conductor of electricity. Reason (R): Each carbon atom is bonded to four other carbon atoms.

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