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The ratio of cationic radius to anionic ...

The ratio of cationic radius to anionic radius in an ionic crystal is greater than 0.732. Its coordination number is:

A

1

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
D
When radius ratio`r^(+)//r^(-)gt0.732`, the cation is present at the cubic side in a simple cubic lattice of anions. The co-ordination number of cation =co-ordination number of anion=8
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