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Introduction to Le Chatelier's Principle

A salt AB cry...

Question

A salt AB crystallises in the CsCl structure. The anions at the corners and the cation in the centre, hence radius ratio $(\frac{r_{t}}{r})$ is

A

0.225

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B

0.441

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C

0.625

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D

0.732

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Solution

The correct option is D 0.732
For BCC, $\frac{r_{+}}{r_{-}} = 0.732$ or above.

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