JEE CHEMISTRY MCQ: SOLID STATE

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A binary solid

\left( {{A^ + }{B^ - }} \right)

has a rock salt structure. If the edge length is 400 pm and radius of cation is 75 pm the radius of anion is :

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Correct option: B

125 pm

Option B (125 pm) is correct because the radius of the anion is calculated using the rock salt structure relationship with the edge length and cation radius.

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