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The radius of a divalent cation A2+ is 94 pm and of divalent anion B2- is 146 pm. The compound AB has

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By Expert Faculty of Sri Chaitanya
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a
Rock salt structure
b
Zinc blend structure
c
Antifluorite structure
d
Caesium chloride like structure
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detailed solution

Correct option is A

rcra=94146=0.64From radius ratio it is clear that it is fcc stucture

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MgO crystallizes in a cubic type crystal system. The ionic radii for Mg2+ and O2- are 0.066 and0.140 nm respectively One can conclude that the Mg2+ ions occupy

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