The anionic sites occupied by unpaired electrons are called F-centres – InterviewSolution

1.	The anionic sites occupied by unpaired electrons are called F-centres or colour centres . They impart __(X)__ colour to the crystals of NaCl. Excess of lithium makes LiCl crystals __(Y)__and excess of potassium makes KCl crystals _(Z)___. (X),(Y) and (Z) are
Answer» yellow, GREEN and pink respectively pink , yellow and violet (or lilac) respectively yellow, pink and violet (or lilac ) respectively red, yellow and pink respectively Answer :C

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