Solid State Question 32

Question: The $ {r _{+}}/{r _{-}} $ ratio of $ ZnS $ is 0.402. Pick out the incorrect statements from the following-

Options:

A) $ ZnS $ is 4:4 coordination compound.

B) $ ZnS $ does not crystallize in rock salt type lattice because $ {r _{+}}/{r _{-}} $ is too small to avoid overlapping of $ {{S}^{2-}} $ ions.

C) $ Z{{n}^{2+}} $ ion is too small to fit precisely into the octahedral voids of $ {{S}^{2-}} $ ions.

D) $ Z{{n}^{2+}} $ ion is too large to fit into the octahedral voids of $ {{S}^{2-}} $ ions.

Show Answer

Answer:

Correct Answer: D

Solution:

[d] $ Z{{n}^{2+}} $ ion is too small to fit into the octahedral voids of $ {{S}^{2-}} $ ions.