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NCERT Solutions for Class 9

NCERT Solutions for Class 9 Chemistry Free PDF Download

NCERT Solutions for Class 9 Chemistry

NCERT is on the priority list of recommendation of the Central Board of Secondary Education (CBSE). Here, you will find all the chapter-wise NCERT Solutions for Class 9 Chemistry. It will help you to understand the subject and perform well in exams.

Chemistry is one of those subjects which are equally important from academics as well practical point of view. NCERT is specially made to clear most of the topics of the syllabus of chemistry. NCERT solutions help the students to clear all the doubts regarding any chapter. Here, you will find all the solutions of NCERT questions.

Here on toppr, we have a specialized team which prepares all the NCERT solutions considering the needs of the students. Moreover, if any student faces any kind of problems or doubts, they can contact our team for help.

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NCERT Solutions for Class 9 Chemistry Chapterwise Free PDF Download

CBSE Class 9 Chemistry Chapter 1 – Matter in our Surroundings

CBSE Class 9 Chemistry  Chapter 2 – Is Matter Around Us Pure

CBSE Class 9 Chemistry Chapter 3 – Atoms and Molecules

CBSE Class 9 Chemistry Chapter 4 – Structure of the Atom

NCERT Solutions for Class 9 Chemistry

NCERT Solutions for Class 9 Chemistry Chapter 1: Matter in our Surroundings

Matter is an important part of our planet as our whole planet is made up of matter. This chapter provides a good amount of information about the matter. It includes the importance of matter based on the chemical and physical properties of matter. The physical nature of the matter will help the students to understand the concept of matter on the basis of its practical use in daily life. The chapter also explains some concepts like evaporation, boiling point, freezing point, etc. along with the factors affecting them.

NCERT Solutions for Class 9 Chemistry Chapter 2: Is Matter Around Us Pure

In the present era, it believed that purity in anything is hardly seen. It is because of the presence of high level of pollutants everyone. In the context of the matter, it also holds true. In this chapter, the students will be able to learn about various concepts like solutions, pure substances, mixtures, suspensions, colloidal, etc. Moreover, this chapter talks about Homogenous substances and Heterogeneous Substances.

NCERT Solutions for Class 9 Chemistry Chapter 3: Atoms and Molecules

In previous classes, students have already read about the presence of atoms as a part of the material. It showed them the divisibility of matter. Atom is the smallest thing or unit present on this planet. In this chapter, the students will be able to learn more about the molecules. This chapter highlights concepts like molecules of compounds, molecules of elements, etc. This chapter also talks about the presence of ions, Law of Conservation of Energy, Law of Chemical Combination, Dalton’s Atomic Theory, etc.

NCERT Solutions for Class 9 Chemistry Chapter 4: Structure of the Atom

One of the most famous theories or models regarding atoms is given by J.J. Thomson. In this chapter, the students will learn about his model along with the drawbacks. It helps to understand the divisibility of atoms. It states that atoms are made of charged particles viz. electrons, protons, neutrons, etc. In the end, the students will learn about the atomic number, atomic mass, mass number, isotopes, isobars, etc

Solved Questions for You

Question 1: What do you observe when H2S gas is passed through cadmium chloride solution? Name the type of reaction:

  1. Synthesis
  2. Displacement
  3. Double displacement
  4. Neutralisation

Answer: When H2S gas i.e. hydrogen sulphide gas is passed through cadmium chloride solution, yellow colored precipitate of cadmium sulphide (CdS) is formed and aqueous hydrochloric acid (HCl) is formed.
H2S (g)+CdCl2(aq)→CdS(s)+2HCl(aq)

Question 2: Name the type of following chemical reaction.

KNO3​+H2SO4​→HNO3​+KHSO4

  1. Displacement Reaction
  2. Double Displacement
  3. Combination
  4. Decomposition

Answer: A double displacement reaction is a type of reaction where part of one reactant is replaced by part of another reactant.
Double displacement reactions take the form:
AB + CD →  AD + CB
KNO3​+H2SO4​→HNO3​+KHSO4

Question 3: Lead sulphate + ammonium hydroxide ⟶ Ammonium sulphate + lead hydroxide.

Identify the type of reaction.

  1. Decomposition Reaction.
  2. Double displacement Reaction.
  3. Displacement Reaction.
  4. Neutralization Reaction.

Answer: Reaction:
PbSO4+2NH4OHPb(OH)2​+(NH4​)2SO4.

Two reactants exchange their ions to form new compounds called as double displacement reaction.

Question 4: What is observed when a solution of sodium sulphate is added to a solution of barium chloride taken in a test tube? Write equation for the chemical reaction involved and name the type of reaction in this case.

Answer: These two solutions reacts to form a white insoluble precipitate.

BaCl22+Na2SO4​→2NaCl+BaSO4​↓

This is a double displacement reaction as the two compounds exchange their ions to form to different compounds.

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