JEE Main Chemistry question

Statement 1: Diamond and graphite are polymorphic forms. Statement 2: Carbon adopts different structural arrangements under different conditions to give these two forms.

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

Diamond and graphite are both made purely of carbon but have distinctly different crystal structures (tetrahedral covalent network versus layered hexagonal sheets), which is exactly the definition of polymorphism, so Statement 1 is true. Statement 2 correctly

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Question ID VK-141626