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Question

Which of the following statements are true regarding non-metal oxides?

A
They are acidic in nature.
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B
They are basic in nature.
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C
They react with acid to form salt and water.
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D
They react with base to form salt and water.
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Solution

The correct options are
A They are acidic in nature.
D They react with base to form salt and water.
Reaction of non-metal oxide with base is:

Non-metal oxide + BaseSalt + Water

An example of the above reaction is:

CO2(g)+Ca(OH)2(aq)CaCO3(s)+H2O(l)

CO2 is a non-metal oxide and Ca(OH)2 is a base. They react to form CaCO3 (salt) and water.

Comparing it with neutralisation reaction where acid reacts with base to form salt and water, we can conclude non-metal oxides are acidic in nature.

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