# NCERT Solutions for Class 9 Science Chapter 2 Is Matter Around Us Pure

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NCERT Solutions for Class 9 Science Chapter 2 - Is Matter Around Us Pure: Have you ever noticed the word ‘pure’ written on the packs of these consumables? For a common person pure means having no adulteration. But, for a scientist, all these things are actually mixtures of different substances and hence not pure. For example, milk is actually a mixture of water, fat, proteins, etc. When a scientist says that something is pure, it means that all the constituent particles of that substance are the same in their chemical nature. A pure substance consists of a single type of particles. In other words, a substance is a pure single form of matter.

In this chapter, you will get to know that a solution is a homogeneous mixture of two or more substances. The major component of a solution is called the solvent, and the minor, the solute.

Here are the important Topics of NCERT Solutions for Class 9 Science Chapter 2 - Is Matter Around Us Pure mentioned below:

2.1 What Is a Mixture?

2.1.1 Types of Mixtures

2.2 What Is a Solution?

2.2.1 Concentration of a Solution

2.2.2 What Is a Suspension?

2.2.3 What Is a Colloidal Solution?

2.3 Separating the Components of a Mixture

2.3.1 How Can We Obtain Coloured Component (dye) from Blue/ Black Ink?

2.3.2 How Can We Separate Cream From Milk?

2.3.3 How Can We Separate a Mixture of Two Immiscible Liquids?

2.3.4 How Can We Separate a Mixture of Salt and Camphor?

2.3.5 Is the Dye in Black Ink a Single Colour?

2.3.6 How Can We Separate a Mixture of Two Miscible Liquids?

2.3.7 How Can We Obtain Different Gases from Air?

2.3.8 How Can We Obtain Pure Copper Sulphate from an Impure Sample?

2.4 Physical and Chemical Changes

2.5 What Are the Types of Pure Substances?

2.5.1 Elements

2.5.2 Compounds

In NCERT Solutions for Class 9 Science Chapter 2 - Is Matter Around Us Pure, you will also study that pure substances can be elements or compounds. An element is a form of matter that cannot be broken down by chemical reactions into simpler substances. A compound is a substance composed of two or more different types of elements, chemically combined in a fixed proportion. Properties of a compound are different from its constituent elements, whereas a mixture shows the properties of its constituting elements or compounds.

After going through this chapter, you must be able to get the NCERT Solution of these questions which are mentioned below, as these questions are from NCERT.

Q1. Which separation techniques will you apply for the separation of the following?

• (a) Sodium chloride from its solution in water.
• (b) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
• (c) Small pieces of metal in the engine oil of a car.
• (d) Different pigments from an extract of flower petals.
• (e) Butter from curd.
• (f) Oil from water.
• (g) Tea leaves from tea.
• (h) Iron pins from sand.
• (i) Wheat grains from husk.
• (j) Fine mud particles suspended in water.

Q2. Write the steps you would use for making tea. Use the words solution, solvent, solute, dissolve, soluble, insoluble, filtrate and residue?

If you have any problem in answering these questions or you are not getting the correct answers then don't worry, NCERT Solutions for Class 9 Science Chapter 2 - Is Matter Around Us Pure is there for you to help. Solutions for NCERT Class 9 Science Chapter 2 - Is Matter Around Us Pure will give you answers to all the questions which are mentioned in the NCERT book.

First of all, try to answer all the questions by yourself. Then, if you need any help, NCERT Solutions for Class 9 Science Chapter 2 - Is Matter Around Us Pure will suggest you the best answer written by our experts.

## NCERT Solutions for Class 9 Science- Chapter Wise

 Chapter No. Chapter Name Chapter 1 Matter in Our Surroundings Chapter 3 Atoms and Molecules Chapter 4 Structure of The Atom Chapter 5 The Fundamental Unit of Life Chapter 6 Tissues Chapter 7 Diversity in Living Organisms Chapter 8 Motion Chapter 9 Force and Laws of Motion Chapter 10 Gravitation Chapter 11 Work and Energy Chapter 12 Sound Chapter 13 Why Do We Fall ill? Chapter 14 Natural Resources Chapter 15 Improvement in Food Resources