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MHT CET Chemistry question

ChemistryThe d and f-Block ElementsMHT CET

In which of the following pairs, tripositive ions of both will have same colour?

Answer: (D)

Solution

Ln ions with 4f/4f (Pm, Er) are both pink and those with 4f/4f (Sm, Dy) are both

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Question ID VK-074504