Q.

Given : Radius of A2+ = 100 pm; Radius of C+ = 240 pm; Radius of B2- = 300 pm; Radius of D- = 480 pm. Which is / are correct statement?

Moderate

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By Expert Faculty of Sri Chaitanya

Coordination number of A2+ in comp AB is 4

Coordination number of A2+ in comp AB is 6.

Coordination number of C+in comp CD is 6

Coordination number of C+in comp CD is 8.

answer is 1,3.

(Detailed Solution Below)

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Detailed Solution

rA2+rB2−=100300=0.333 rC+rD−=240480=0.5B2− are at F.C.C. D− at F.C.C. lattice point lattice point and A2+ ion are C+ in all octahedral voids alternate tetrahedral voidC.No. of AB = 4 : 4 C.No. of CD = 6 :6

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