Which of the following features is false regarding the structure of \( \mathrm{CsCl} \) ? (1) It...

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Which of the following features is false regarding the structure of \( \mathrm{CsCl} \) ?
(1) It has bcc arrangements
(2) For each ion coordination number is 8
(3) For each ion coordination number is 6
(4) The radius ratio \( \left(r_{+} / r_{-}\right) \)is \( 0.93 \)
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