Question -The correct order of decreasing polarisability of ion is :
Options:
A .  Cl−>Br−>I−>F−
B .  F−>I−>Br−>Cl−
C .  I−>Br−>Cl−>F−
D .  F−>Cl−>Br−>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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