Assertion :- (A) Graphite is good conductor of electricity however diamond belongs to the category of insulators .
Rason (R ) Grapite is soft in anture on the hand diamond is very hard and brittle.

Options

A. Assertion and reason both are corrent statements and reason is correct explanation for assertion.
B. Assertion and reason both are corrent statements but reason is not correct explanation for assertion.
C. Assertion is corrent statement but reason reason is wrong statement.
D. Assertion is wrong statement but reason is correct statement.

Answer

B

Explanation

Corrcet Explanation. In graphite, carbon atoms are `sp^(2)`m hybridised and have one free electron. In diamond, these are `sp^(3)` hybridised and there are no free electrons available for electrical conductiviy.