InterviewSolution
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InterviewSolution
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The salts of La^(3+) are colourless. Explain. |
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Answer» Solution :(i) `LA^(3+)` has electronic configuration, `[Xe]4F^(@)` (ii) Since there are no UNPAIRED electrons in 4f- ORBITAL, `f rarr f` transition is not possible. HENCE `La^(3+)` ions do not absorb radiations in visible region, and they are colourless. |
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