Metals and non-metals react with oxygen to give oxide are basic in nature while oxides formed by non-metals are acidic in nature. The nature of oxides can be determiend by testing the aqueous solution of oxide with litmus paper.
Q. The oxides of non-metals are acidic oxides because they dissolve in water to give ____

Options

A. alkalies
B. acids
C. carbonates
D. sulphates.

Explanation

To solve the question, we need to understand the behavior of non-metal oxides when they react with water. Here’s a step-by-step breakdown:

1. **Identify the nature of non-metal oxides**: Non-metals react with oxygen to form oxides. These oxides are known as non-metallic oxides.

2. **Understand the reaction with water**: When non-metallic oxides dissolve in water, they undergo a chemical reaction.

3. **Determine the product of the reaction**: The reaction of non-metallic oxides with water typically produces acids. For example, sulfur dioxide (SO2) dissolves in water to form sulfurous acid (H2SO3).

4. **Conclude the nature of the oxides**: Since the products formed from the dissolution of non-metal oxides in water are acids, we can conclude that non-metal oxides are acidic in nature.

5. **Select the correct answer**: The question asks what non-metal oxides dissolve in water to give. Since we established that they form acids, the correct answer is B - acid.

### Final Answer:
The oxides of non-metals are acidic oxides because they dissolve in water to give **B - acid**.