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What is Soluble in Water What is Not I Video Lecture | Crash Course for Class 6

FAQs on What is Soluble in Water What is Not I Video Lecture - Crash Course for Class 6

1. What does it mean for a substance to be soluble in water?

Ans.A substance is said to be soluble in water if it can dissolve in water to form a homogeneous mixture or solution. This means that when the substance is added to water, it breaks down into smaller particles that are evenly distributed throughout the liquid.

2. Can you give examples of substances that are soluble in water?

Ans.Some common examples of substances that are soluble in water include salt (sodium chloride), sugar (sucrose), and baking soda (sodium bicarbonate). These substances dissolve easily when mixed with water.

3. What are some examples of substances that are not soluble in water?

Ans.Examples of substances that are not soluble in water include oil, sand, and flour. When these substances are mixed with water, they do not dissolve and instead may float on the surface or settle at the bottom.

4. How can we test if a substance is soluble in water?

Ans.To test if a substance is soluble in water, you can take a small amount of it and mix it with water in a clear container. If the substance dissolves completely, it is soluble. If it remains visible and does not dissolve, it is not soluble.

5. Why is it important to know which substances are soluble or not in water?

Ans.Knowing which substances are soluble or not in water is important for various reasons, including cooking, cleaning, and environmental science. For example, in cooking, we need to know which ingredients will dissolve in water to make solutions, while in environmental science, understanding solubility helps with pollution control and water quality assessments.

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Oct 23, 2025 Last updated

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