A) \[A{{g}^{+}}\]possess 18 electrons shell to screen the nuclear charge
B) \[A{{g}^{+}}\] shows pseudo inert gas configuration
C) distortion of \[{{I}^{-}}\] is more pronounced than \[C{{l}^{-}}\] ion
D) existence of d-d transition
Correct Answer: C
Solution :
\[AgCl\] is colourless whereas \[AgI\] is yellow because distortion of \[{{I}^{-}}\] is more pronounced than \[C{{l}^{-}}\] ion hence greater polarisation of electron cloud takes place in \[AgI\] which cause colour.
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