Q.
Select the correct statement(s) for the rock-salt structure (NaCl)
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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 A.
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Detailed Solution
sodium chloride crystal has the radius ratio of 0.52
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