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4

The ionic radii of Mg+2  and O-2 are 0.66 A° and 1.40 A° , respectively. The most probable type of gteometry exhibited by MgO on the basis of radius ratio rule is

A. NaCl type

B. CsCl type

C. ZnS type

D. Boron oxide type

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Correct Answer :

A. NaCl type


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