MHT CET 2026 Chemistry question

Which of the following elements in +3 oxidation state forms colourless compounds?

(A)ScCorrect
(B)Ni
(C)Cr
(D)V

Answer: (A)

Solution

Colour in transition-metal compounds arises from d-d transitions, which need partly filled d orbitals. (, ) has no d electrons, so no d-d transition is possible and its compounds

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Question ID VK-098485