Substance A reacts with oxygen to form an acidic oxide.
Substance B reacts with oxygen to form a basic oxide.
Oxides of A and B react with water to form X and Y respectively.
Which of the following statements are true?

A is a metal; B is a non-metal

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A is a non-metal; B is a metal

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X is a base; Y is an acid

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X is an acid; Y is a base

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Solution

The correct options are
B A is a non-metal; B is a metal
D X is an acid; Y is a base
- Metals react with oxygen to form basic oxides, whereas non-metals react with oxygen to form acidic oxides.
Therefore, B is a metal and A is a non-metal.

- Acidic oxides react with water to form acids.
- Basic oxides react with water to form bases.
Therefore, X is an acid because A is a non-metal and Y is a base because B is a metal.

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Substance A reacts with oxygen to form an acidic oxide. Substance B reacts with oxygen to form a basic oxide. Oxides of A and B react with water to form X and Y respectively. Which of the following statements are true?

Substance A reacts with oxygen to form an acidic oxide.
Substance B reacts with oxygen to form a basic oxide.
Oxides of A and B react with water to form X and Y respectively.
Which of the following statements are true?