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Assertion (A): White tin is an example of tetragonal system.Reasoning (R): For a tetragonal system a = b = c and a = p = y * 90^@.

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Both (A) and (R) are true and (R) is the CORRECT explanation of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true but (R) is false
Both (A) and (R) are false

Answer :C


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