# NEET Chemistry The Solid State Questions Solved

A crystal formula $A{B}_{3}$ 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

(C).

Now Co-ordination no. of A is as shown so of B is 2.

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