An ionic compound \( \mathrm{AB} \) has \( \mathrm{ZnS} \) type structure. If the radius \( \mat...

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An ionic compound \( \mathrm{AB} \) has \( \mathrm{ZnS} \) type structure. If the radius \( \mathrm{A}^{+} \)is \( 22.5 \mathrm{pm} \), then the ideal radius of \( \mathrm{B}^{-} \)would be
(a) \( 54.35 \mathrm{pm} \)
(b) \( 100 \mathrm{pm} \)
(c) \( 145.16 \mathrm{pm} \)
(d) None of these
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