The appearance of colour in solid alkali metal halides is generally due toA. interstitial positionsB. F-centresC. Schottky defectD. Frenkel defect

The appearance of colour in solid alkali metal halides is generally du

1.	The appearance of colour in solid alkali metal halides is generally due toA. interstitial positionsB. F-centresC. Schottky defectD. Frenkel defect
Answer» Correct Answer - B The colour is due to F-centres created by the electrons present in the holes

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The appearance of colour in solid alkali metal halides is generally due toA. interstitial positionsB. F-centresC. Schottky defectD. Frenkel defect

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