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Which one of the following is used in sk...

Which one of the following is used in skin ointments ?

A

`ZnO`

B

`CuO`

C

`FeO`

D

`Fe_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`4K_(2)Cr_(2)O_(7)overset("heat")(rarr)4K_(2)CrO_(4)+2Cr_(2)O_(3)+3O_(2)`
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