Question

The appearance of colour in solid alkali metal halides is generally due to ______.

विकल्प

• Schottky defect

• Frenkel defect

• Interstitial positions

• F-centre

Answer 1

The appearance of colour in solid alkali metal halides is generally due to F-centre.

Explanation:

The presence of an F-centre found as a defect in the crystal structure causes the appearance of colour in solid alkali metal halide.