Why are non-metal oxides called acidic oxides?
Answer and explanation
Correct answer: Because they can form acidic solutions with water
The governing classification is based on the acid-forming behaviour of many non-metal oxides. For example, carbon dioxide reacts with water to form carbonic acid: CO2 + H2O ⇌ H2CO3, while sulphur dioxide forms sulphurous acid. Their aqueous solutions can therefore show acidic properties. Option A is correct. Turning red litmus blue would indicate a base, and the other choices do not describe the defining reaction.
Frequently asked questions
What is the correct answer to this question?
Because they can form acidic solutions with water
Why is this the correct answer?
The governing classification is based on the acid-forming behaviour of many non-metal oxides. For example, carbon dioxide reacts with water to form carbonic acid: CO2 + H2O ⇌ H2CO3, while sulphur dioxide forms sulphurous acid. Their aqueous solutions can therefore show acidic properties. Option A is correct. Turning red litmus blue would indicate a base, and the other choices do not describe the defining reaction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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