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Is Matter Around Us Pure I : CBSE Class 9 Science Animated Video Lectures in English & Hindi Video Lecture

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FAQs on Is Matter Around Us Pure I : CBSE Class 9 Science Animated Video Lectures in English & Hindi Video Lecture

1. What is the meaning of "Matter Around Us Pure" in CBSE Class 9 Science?

Ans. "Matter Around Us Pure" is a chapter in CBSE Class 9 Science that deals with the concept of purity of substances and various methods of separation of mixtures.

2. What is the difference between pure substances and mixtures?

Ans. Pure substances are made up of only one type of particle, either atoms or molecules, and have a fixed composition. Mixtures, on the other hand, are composed of two or more substances that are physically combined and can be separated by physical methods.

3. What are the different methods of separation of mixtures mentioned in the chapter?

Ans. The chapter discusses several methods of separation of mixtures, including filtration, evaporation, distillation, chromatography, and fractional distillation.

4. How does filtration work as a method of separation?

Ans. Filtration is a method of separating solid particles from a liquid or gas by passing the mixture through a porous material called a filter. The filter allows the liquid or gas to pass through while retaining the solid particles.

5. What is chromatography and how is it used for separation?

Ans. Chromatography is a technique used to separate the components of a mixture based on their differential solubilities and adsorption properties. It involves the separation of substances using a stationary phase (like a filter paper) and a mobile phase (like a solvent). The different components of the mixture move at different rates and can be identified based on their separation distances on the chromatogram.

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Nov 15, 2024 Last updated

Is Matter Around Us Pure I : CBSE Class 9 Science Animated Video Lectures in English & Hindi for Class 92024 is part of Class 9 preparation. The notes and questions for Is Matter Around Us Pure I : CBSE Class 9 Science Animated Video Lectures in English & Hindi have been prepared according to the Class 9 exam syllabus. Information about Is Matter Around Us Pure I : CBSE Class 9 Science Animated Video Lectures in English & Hindi covers all important topics for Class 92024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Is Matter Around Us Pure I : CBSE Class 9 Science Animated Video Lectures in English & Hindi.

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