Chemistry
Assertion (A): Diamond and graphite are crystalline allotropes of carbon.
Reason (R): Both diamond and graphite are good conductors of electricity and are used as gems.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Carbon
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Answer
A is true but R is false.
Explanation — Diamond is a bad conductor of electricity since they have no free or mobile electrons, but it is used for making gems. However, Graphite is a good conductor of electricity, but is not used for making gems.
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