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Question: The correct order of decreasing polarizability of ion is :...

The correct order of decreasing polarizability of ion is :

A

Cl−,Br−,I−,F−Cl^{-},Br^{-},I^{-},F^{-}

B

F−,I−,Br−,Cl−F^{-},I^{-},Br^{-},Cl^{-}

C

I−,Br−,Cl−,F−I^{-},Br^{-},Cl^{-},F^{-}

D

F−,Cl−,Br−,I−F^{-},Cl^{-},Br^{-},I^{-}

Answer

I−,Br−,Cl−,F−I^{-},Br^{-},Cl^{-},F^{-}

Explanation

Solution

As the size of anions decrease the distance of valence shell electrons from nucleus decreases and so polarizability decreases.