MHT CET Chemistry question

Cuprous ion is colourless while cupric ion is coloured because

(A)Both have half filled p and d-orbitals
(B)Cuprous ion has incomplete d-orbital and cupric ion has completed d-orbitals
(C)Both have unpaired electrons in d-orbitals
(D)Cuprous ion has a completed d-orbital and cupric ion has an incomplete -orbitalCorrect

Answer: (D)

Solution

Cu is (completely filled, no d–d transition, colourless) while Cu is (one

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Question ID VK-074682