The correct order of decreasing polarisability of ion is : Options: A . &nbsp C l − > B r − > I − > F − B . &nbsp F − > I − > B r − > C l − C . &nbsp I − > B r − > C l − > F − D . &nbsp F − > C l − > B r − > I −

The correct order of decreasing polarisability of ion is :

Question

The correct order of decreasing polarisability of ion is :

Options:

A .

C l^{-} > B r^{-} > I^{-} > F^{-}

B .

F^{-} > I^{-} > B r^{-} > C l^{-}

C .

I^{-} > B r^{-} > C l^{-} > F^{-}

D .

F^{-} > C l^{-} > B r^{-} > I^{-}

Answer: Option C
:
C

The polarisability of an anion also depends on its size and charge – the larger the negative ion and the larger its charge the more polarisable it becomes, that is, more is the size of anion more will be the polarisability.

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