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Crystal defects give some important prop...

Crystal defects give some important properties to solids. The defects are due to either metal excess of metal defficiency of doping
`ZnO` an strong heating becomes yellow due to

A

Oxidation of metal ions

B

Oxidation of oxide

C

Reduction of metal ions

D

dislocation of metal ion

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The correct Answer is:
B
Due to oxidation of oxide ion `ZnO` become yellow `O^(-2)rarr(1)/(2)O_(2)+2e^(-)`
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AAKASH SERIES-SOLID STATE-PRACTICE SHEET - 4
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  8. A metal adopts two allotropic forms with the following types of arrang...

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  9. A metal adopts two allotropic forms with the following types of arrang...

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