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Question

Choose the correct option:

A
Non-metallic oxides are basic in nature
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B
Metallic oxides are acidic in nature
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C
Non-metallic oxides are acidic in nature
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D
None of the above
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Solution

The correct option is C Non-metallic oxides are acidic in nature
Non-metallic oxides are acidic in nature and metallic oxides are basic in nature.
This is because the oxides of metals like MgO or CaO form hydroxides in their aqueous solutions.
For example:
K2O+H2O2KOH

But when non-metallic oxides dissociate into their constituent ions in water, they give H+ ions in their aqueous solutions forming acids.
For example:

CO2+H2OH2CO3

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