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The d & f Block Elements — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
Question
Colour in transition metal compounds is attributed to:
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Answer

  1. Incomplete (n−1)d subshell.
Explanation:
Any compound or ion showing colour is due to presence of unpaired electron. Transition metal compounds have incomplete (n-1)d sub shell and because of that they have unpaired electron and  thus they show colour.

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