Q.

Select the correct statement(s) for the rock-salt structure (NaCl)

Moderate

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By Expert Faculty of Sri Chaitanya

a

The tetrahedral voids are smaller than the octahedral sites

b

The octahedral voids are occupied by cations and the tetrahedral sites are empty

c

The radius ratio (rc/ra) is 0.225

d

the radius ratio (rc/ra) is 0.732

answer is 1,2.

(Detailed Solution Below)

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Detailed Solution

sodium chloride crystal has the radius ratio of 0.52
ctaimg
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