Which of the following species is/are coloured ? – InterviewSolution

1.	Which of the following species is/are coloured ?
Answer» `K_(2)Cr_(2)O_(7)` `CrO_(2)Cl_(2)` `Na[Ag(CN)_(2)]` `Cl_(2)(g)` Solution :(a) `K_(2)Cr_(2)O_(7) to "Due to CHARGE transfer"`. (b) `CrO_(2)Cl_(2) to "Due to charge transfer"`. (C )`Na[Ag(CN)_(2)] ton "Colourless"`. (d) `Cl_(2)(g) to "Due to HOMO-LUMO ELECTRONIC transition"`.

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