In an ionic crystal the radius of \( \mathrm{A}^{+} \)and \( \mathr...

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In an ionic crystal the radius of \( \mathrm{A}^{+} \)and \( \mathrm{B}^{-} \)ions are respectively \( 150 \mathrm{pm} \) and \( 200 \mathrm{pm} \). The coordination number and the type of lattice will be respectively
(1) \( (8,8) \) and bcc
(2) \( (8,4) \) and \( f c c \)
(3) \( (6,6) \) and \( c c p \)
(4) \( (4,8) \) and tetrahedral
\( \mathrm{P} \)
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