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Q.

In CaF2, having the fluorite structures the co-ordination numbers for calcium ion (Ca+2) and fluoride ion (F−) are

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a

8, 4

b

4, 2

c

4, 8

d

 2, 4 

answer is C.

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Detailed Solution

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Ca+2−fcc   ; in fluorite structure 

Co.No of Ca+2=8

Co.No of F−=4

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