JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Statement 1: Graphite is an example of tetragonal crystal system. Statement 2: For a hexagonal system , , .

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(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 TrueCorrect

Answer: (D)

Solution

Graphite actually crystallises in the hexagonal crystal system (stacked hexagonal carbon sheets), not the tetragonal system, so Statement 1 is false. Statement 2, however, correctly states the defining parameters of the hexagonal system

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Question ID VK-141628