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NCERT Class 9 Science Chapter 2 Solutions
Chapter 2- Is the matter around us pure NCERT Solutions for Class 9 Science (Chemistry).
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Solutions are created with the assistance of qualified teachers with extensive conceptual knowledge and years of expertise. The content is well-structured to make learning and understanding easy for students. The NCERT Solutions have also been updated to reflect the most recent NCERT syllabus.Chapter 2: Is matter around us pure
- What is a Mixture?
- TYPES OF MIXTURES
- What is a Solution?
- CONCENTRATION OF A SOLUTION
- What is a suspension?
- WHAT IS A COLLOIDAL SOLUTION?
- Separating the Components of a Mixture
- HOW CAN WE OBTAIN COLOURED COMPONENT (DYE) FROM BLUE/BLACK INK?
- HOW CAN WE SEPARATE CREAM FROM MILK?
- HOW CAN WE SEPARATE A MIXTURE OF TWO IMMISCIBLE LIQUIDS?
- HOW CAN WE SEPARATE A MIXTURE OF SALT AND AMMONIUM CHLORIDE?
- IS THE DYE IN BLACK INK A SINGLE COLOUR?
- HOW CAN WE SEPARATE A MIXTURE OF TWO MISCIBLE LIQUIDS?
- HOW CAN WE OBTAIN PURE COPPER SULPHATE FROM AN IMPURE SAMPLE?
- Physical and Chemical Changes
- What are the Types of Pure Substances?
- ELEMENTS
- COMPOUNDS.
Exercise 2.1
Q1. What is meant by a substance?
A1. A pure substance is a matter which consist of a single type of particles and has specific properties eg. copper, sulphur, salt, pure sugar. Etc.
Q2. List the points of differences between homogeneous and heterogeneous mixes.
A2. The differences between homogeneous and heterogeneous are as follows.
Homogeneous | Heterogeneous |
It has uniform composition | They do not have uniform composition |
No visible boundaries of separation | Show visible boundaries of separation |
They consist of only one phase For eg. sugar + water = Sugar solution |
The consist of more than one phase For eg. Sugar + Sand = Sugar and sand |
About NCERT Class 9 Science Chapter 1: Is matter around us pure
Why is NCERT Class 9 Science Chapter 2: Is matter around us a part of the curriculum?
Salient features of NCERT Class 9 Science Chapter 2 Solutions:Is matter around us pure
- Written by certified teachers and industry specialists in an easy-to-understand language
- Questions from the most recent mandated curriculum are included.
- An in-depth examination of past year's exam questions
- Content was developed in great detail, with all jargons explained.
- Examine other learning resources such as example papers and question papers from past years.