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The radius of Li^(+) ion is 60pm and tha...

The radius of `Li^(+)` ion is 60pm and that of `F^(-)` is 136 pm. Structure of LiF and coordination number is

A

Like NaCl, CN = 6

B

Like CsCl, CN = 8

C

Anti fluorite, CN = 8

D

Like ZnS, CN = 4

Text Solution

Verified by Experts

The correct Answer is:
A
`r^(+)/r^(-)" ratio is "60/136=0.441`
Hence LiF has NaCl structure with co-ordination number = 6.
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