Given : Radius of \( A^{2+}=100 \mathrm{pm} \); Radius of \( C^{+}=240 \mathrm{pm} \); Radius of...

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Given : Radius of \( A^{2+}=100 \mathrm{pm} \); Radius of \( C^{+}=240 \mathrm{pm} \); Radius of \( B^{2-}=300 \mathrm{pm} \); Radius of \( D^{-}=480 \mathrm{pm} \) Which is/are correct statement ?
(a) Coordination number of \( A^{2+} \) in comp \( A B \) is 4
(b) Coordination number of \( A^{2+} \) in comp \( A B \) is 6 .
(c) Coordination number of \( C^{+} \)in comp \( C D \) is 6
(d) Coordination number of \( C^{+} \)in comp \( C D \) is 8 .
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