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A crystal formula AB(3) has A ions at th...

A crystal formula `AB_(3)` has A ions at the cube corners and B ions at the edge centres. The coordination numbers of A and B are, respectively,

A

6 and 6

B

2 and 6

C

6 and 2

D

8 and 8

Text Solution

Verified by Experts

The correct Answer is:
C
`("Coordination number of cation")/("Coordination number of anion")=("Charge of cation")/("Charge of anion")=3/1=3`

Now coordination number of A is 6 as shown, so of B is 2.
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