1.

Which is /arecorrect statementabout zinc blende structure ?

Answer»

zinc ions occupy half of the tetrahedral sites
each `Zn^(2+)` ion is surrounded by six sulphide ions
each `S^(2-)` ion issurrounded by six `Zn^(2+)` ions
it has fcc structure

Solution :ZNS has a ccp structure . `S^(2-)` ions are present at the CORNERS of the cube and CENTRE of each FACE. `Zn^(2+)` ions occupy half of the tetrahedral sites. Each `Zn^(2+)` ion is surrounded by four `S^(2-)` ions and each `S^(2-)` ion is surrounded by four `Zn^(2+)` ions.


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