A binary solid ( \( A^{+} B^{-} \)) has zinc blende structure with \( B^{-} \)ions constituting ...

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A binary solid ( \( A^{+} B^{-} \)) has zinc blende structure with \( B^{-} \)ions constituting the lattice and \( A^{+} \)ions occupying \( 25 \% \) tetrahedral holes. The formula of solid is
(A) \( A B \)
(B) \( A_{2} B \)
(C) \( \mathrm{AB}_{2} \)
(D) \( \mathrm{AB}_{4} \)
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