1.

Colour of compounds occurs due to phenomenon of polarisation, charge transfer, d-d transitionand H.O.M.O.L.U.M.O transition. Most of the transition metal transition metal complex compound are coloured either due to d-d electrons transition or charge transfer and ionic compounds are coloured due to polarisation of anion. Q. Choose incorrect statement.

Answer»

Halogens are coloured due to HOMO-LUMO TRANSITION
During charge TRANSFER, OXIDATION state of ATOMS changes
Higher the POLARISATION, more is colour intensity
Comple compound having no unpaired electron can not undergo d-d transition and therefore it is colourless

Answer :D


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