Solid State Question 164

Question: An $ AB_2 $ type structure is found in

[AIIMS 2002]

Options:

A) $ NaCl $

B) $ Al_2O_3 $

C) $ CaF_2 $

D) $ N_2O $

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Answer:

Correct Answer: C

Solution:

$ AB_2 $ type of structure is present in $ CaF_2 $ \ $ AB_2 $ ⇌ $ {{A}^{2+}}+2{{B}^{-}} $ ; $ CaF_2 $ ⇌ $ C{{a}^{2+}}+2{{F}^{-}} $