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A compound of Zinc which is white in col...

A compound of Zinc which is white in cold state and yellow in hot state, is

A

`ZnS`

B

`ZnO`

C

`ZnCl_2`

D

`ZnSO_4`

Text Solution

Verified by Experts

The correct Answer is:
B
ZnO when cold it is pure and when hot it becomes impure and this impurity changes ZnO white to yellow. This impurity is known as metal deficiency defect.
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