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Which one of the following oxides gives ...

Which one of the following oxides gives pink colour with phenolphthalein indicator in aqueous solutions ?

A

`N_(2)O`

B

NO

C

CaO

D

`CO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Metallic oxides are basic in nature while non-metallic oxides are acidic in nature. CaO is a basic oxide and hence, will give pink colour with phenolphthalein indicator in aqueous solution.
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