1.

What will be the correct order for the wave length of light observed for the following ? (P) [Ni(NO_(2))_(6)]^(4-)""(Q)[Ni(NH_(3))_(6)]^(2+) (R) [Ni(H_(2)O)_(6)]^(2+)

Answer»

`PgtQgtR`
`QgtPgtR`
`RgtQgtP`
`QgtRgtP`

Solution :`Delta_(0) implies NO_(2)^(-) gt NH_(3) gt H_(2)O`
`lambda_(abs) implies NO_(2)^(-) ltNH_(3) LT H_(2)O`
`lambda_(abs) implies P gt Q gt R`


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