Question

Assertion :White tin is an example of tetragonal system. Reason: For tetragonal system $a=b=c$ and $\alpha =\beta -\gamma \ne {90}^{\circ }$.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Assertion is incorrect but Reason is correct

Answer 1

The correct option is C Assertion is correct but Reason is incorrect

White tin crystallizes in tetragonal system.

Assertion is correct but reason is incorrect, because for Tetragonal system

$⟶$ $a=b\ne c$ and $\alpha =\beta =\gamma ={90}^{\circ }$.