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Question

Chemistry Question on The solid state

In zinc blende structure, the coordination number of the cation is

A

4

B

6

C

8

D

12

Answer

4

Explanation

Solution

Zinc blende (ZnS)(ZnS) has fee structure. It is an ionic crystal having 4:44: 4 coordination number. S2−S^{2-} form fee lattice and Zn2+Zn ^{2+} has alternate tetrahedral voids. Hence, in zinc blende structure, the coordination number of cation (Zn2+)\left( Zn ^{2+}\right) is 44 .