NEET | 2016Coordination CompoundHard

Question

The ionic radii of 𝐴+ and 𝐵- ions are 0.98 ×10-10m and 1.81 ×10-10 m. The coordination number of each ion in AB is

Options

A.

6

B.

4

C.

8

D.

2

Solution

Radius ratio of A+B-=0.98×10-10 m1.81×10-10 m=0.981.81=0.541
If the radius ratio is between 0.414 and 0.732 then Co-ordination number is 6.

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