Why are metal oxides generally called basic oxides?
Answer and explanation
Correct answer: Because they react with acids to form salt and water
The governing concept is the basic character of many metal oxides. A basic oxide reacts with an acid in a neutralisation reaction to produce salt and water; for example, CuO + 2HCl → CuCl₂ + H₂O. Some metal oxides also dissolve in water to form bases, although not every metal oxide is soluble. Colour, insolubility, and carbon dioxide formation are not defining criteria. Hence option A is correct.
Frequently asked questions
What is the correct answer to this question?
Because they react with acids to form salt and water
Why is this the correct answer?
The governing concept is the basic character of many metal oxides. A basic oxide reacts with an acid in a neutralisation reaction to produce salt and water; for example, CuO + 2HCl → CuCl₂ + H₂O. Some metal oxides also dissolve in water to form bases, although not every metal oxide is soluble. Colour, insolubility, and carbon dioxide formation are not defining criteria. Hence option A is correct.
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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