1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity. Reason: Hybridization of carbon in diamond and graphite are sp3 and sp2, respectively.

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Q. Assertion : Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.
Reason : Hybridization of carbon in diamond and graphite are $sp^3$ and $sp^2$, respectively.

JEE MainJEE Main 2016The p-Block Elements

Solution:

Diamond has strong 3-Dimensional network structure as every carbon is linked with 4 other carbons tetrahedrally via $sp^3$ hybridization. In graphite every carbon is linked to 3 other carbon to forms sheet like hexagonal structure.