Assertion :The conversion of diamond into graphite is an endothermic reaction. Reason: The conversion of diamond into graphite is kinetically very slow.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is incorrect but Reason is correct
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is C Assertion is incorrect but Reason is correct The conversion of diamond into graphite is an exothermic reaction. The conversion of diamond into graphite is kinetically very slow. C(s,diamond) → C(s,graphite) ΔG=− 693 calories Graphite is more stable than diamonds. Assertion is incorrect but Reason is correct.