Question

the white zinc oxide turns yellow on heating because of
a. Frankel defect
b. metal excess defect
c. schottky defect
d. metal deficiency defect​

Answer 1

Answer:

Zinc oxide is a white powder. ... The hot zinc oxide absorbs blue wavelength of light and thus, the reflected light is observed as yellow. On heating, zinc oxide also loses a minute amount of oxygen. When oxygen is lost from the crystal lattice and Frenkel defect is created.

Explanation:

Answer 2

Answer:

a. Frenkel defect

Explanation:

Zinc oxide is a white powder. ... The hot zinc oxide absorbs blue wavelength of light and thus, the reflected light is observed as yellow. On heating, zinc oxide also loses a minute amount of oxygen. When oxygen is lost from the crystal lattice and Frenkel defect is created.

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