An excess of potassium ions makes KCL crystals appear violet or lilac in colour since …………. .A. some of the anionic sites are occupied by an unpaired electronB. some of the anionic sites are occupied by a pair of electronsC. there are vacancies at some anionic sitesD. F-centres are created which impart colour to the crystals.

An excess of potassium ions makes KCL crystals appear violet or lilac

1.	An excess of potassium ions makes KCL crystals appear violet or lilac in colour since …………. .A. some of the anionic sites are occupied by an unpaired electronB. some of the anionic sites are occupied by a pair of electronsC. there are vacancies at some anionic sitesD. F-centres are created which impart colour to the crystals.
Answer» Correct Answer - A::D

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