NCERT Solutions for Class 10 Science Chapter 1 Chemical reactions and equations

NCERT Solutions for Class 10 Science Chapter 1 Chemical reactions and equations

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NCERT Solutions for Class 10 Science Chapter 1 Chemical reactions and equations We have provided class 10 science NCERT Solutions for Chapter 1 Chemical Reactions and Equations

ClassClass 10
SubjectScience
ChapterChapter 1
Chapter NameChemical Reactions and Equations
CategoryNcert Solutions

NCERT Solutions for Class 10 Science Chapter 1 Chemical reactions and equations

The topics and subtopics covered in the NCERT Solutions for Class 10 Science Chapter 1 are –
1.1 – Chemical Equations
1.1.1 – Writing a Chemical Equation
1.1.2 – Balanced Chemical Equations
1.2 – Types of Chemical Reactions
1.2.1 – Combination Reaction
1.2.2 – Decomposition Reaction
1.2.3 – Displacement Reaction
1.2.4 – Double Displacement Reaction
1.3 – Have you observed the effects of oxidation reactions in everyday life?
1.3.1 – Corrosion
1.3.2 – Rancidity

NCERT Solutions for Class 10 Science

NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations includes all the important topics with a detailed explanation that aims to help students to understand the concepts better. Students can also find NCERT intext, exercises, and back-of-chapter questions. Also working on Class 10 Science Chapter 1 Chemical Reactions and Equations NCERT Solutions will be most helpful to the students to solve their Homework and Assignments.

Class 10 Science Chapter 1 Solutions Students who are preparing for their Class 10 board exams must go through NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations. All Chapter 1 – Chemical Reactions and Equations Exercise Questions with Solutions to help you to revise the complete Syllabus and Score good marks in your board exam.

Students can also download NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations PDF to access them even in offline mode. Not only that, but you will also have access to all the FREE PDFs of study materials and solutions.

With schoollearners.com Get free NCERT Book Solution for Class 10 Science Chapter 1 (Chemical Reactions and Equations) explained by expert Science teachers.

Knowledge and good practice will help you score full marks on the questions asked in this chapter.  Learning the fundamentals of Chemistry in CBSE Class 10 is now easy. Class 10 Science Chapter 1 NCERT Solutions NCERT Solutions for Class 10 Science

NCERT Solutions for Class 10 Science Chapter 1 Intext Questions

Page Number: 6

Question 1 Why should a magnesium ribbon be cleaned before burning in air ?

Question 2 Write the balanced equation for the following chemical reactions.
(i) Hydrogen + Chlorine → Hydrogen chloride
(ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride
(iii) Sodium + Water → Sodium hydroxide + Hydrogen

Question 3 Write a balanced chemical equation with state symbols for the following reactions :
(i) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.
(ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.

Page Number: 10

Question 1
A solution of a substance ‘X’ is used for white washing.
(i) Name the substance ‘X’ and write its formula.
(ii) Write the reaction of the substance ‘X’ named in (i) above with water.

Question 2
Why is the amount of gas collected in one of the test tubes in textbook Activity 1.7 (i.e., electrolysis of water) double of the amount collected in the other? Name this gas. 

Page Number: 13

Question 1
Why does the colour of copper sulphate solution change when an iron nail is dipped in it ?

Question 2
Give an example of a double displacement reaction other than the one given in Activity 1.10

Question 3
Identify the substances that are oxidised and the substances which are reduced in the following reactions.
(i) 4Na(s) + O2(g) → 2Na2O(s)
(ii) CuO (s) + H2(g) → Cu (s) + H2O(l) 

NCERT Solutions for Class 10 Science Chapter 1 NCERT Questions

Question 1
Which of the statements about the reaction below are incorrect ?
2 PbO(s) + C(s) → 2Pb (s) + CO2(g)
(a) Lead is getting reduced.
(b) Carbon dioxide is getting oxidised.
(c) Carbon is getting oxidised.
(d) Lead oxide is getting reduced.

(i) (a) and (b)
(ii) (a) and (c)
(iii) (a), (b) and (c)
(iv) All

Question 2
Fe2O3 + 2Al → Al2O3 + 2Fe
The above reaction is an example of a
(a) combination reaction
(b) double displacement reaction
(c) decomposition reaction
(d) displacement reaction

Question 3
What happens when dilute hydrochloric acid is added to iron filings ? Tick the correct answer :
(a) Hydrogen gas and iron chloride are produced.
(b) Chlorine gas and iron hydroxide are produced.
(c) No reaction takes place.
(d) Iron salt and water are produced.

Question 4
What is a balanced chemical equation ? Why should chemical equations be balanced ?

Question 5
Translate the following statements into chemical equations and then balance them.
(a) Hydrogen gas combines with nitrogen to form ammonia.
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Question 6
Balance the following chemical equations :
(a) HNO3 + Ca (OH)2 → Ca (NO3)2 + H2O
(b) NaOH + H2SO4 → Na2SO4 + H2O
(c) NaCl + AgNO3 → AgCl + NaNO3
(d) BaCl2 + H2SO4 → BaSO4 + HCl

Question 7
Write the balanced chemical equations for the following reactions :
(a) Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water
(b) Zinc + Silver nitrate → Zinc nitrate + Silver
(c) Aluminium + Copper chloride → Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride

Question 8
Write the balanced chemical equation for the following and identify the type of reaction in each case :
(a) Potassium bromide (aq) + Barium iodide (aq) → Potassium iodide (aq) + Barium
(b) Zinc carbonate(s) → Zinc oxide (s) + Carbon dioxide (g) bromide(s)
(c) Hydrogen (g) + Chloride (g) → Hydrogen chloride (g)
(d) Magnesium (s) + Hydrochloric acid (aq) → Magnesium chloride (aq) + Hydrogen (g)

Question 9
What does one mean by exothermic and endothermic reactions ? Give examples.

Question 10
Why is respiration considered an exothermic reaction ? Explain.

Question 11
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.

Question 12
Write one equation each for the decomposition reactions where energy is supplied in the form of heat, light or electricity.

Question 13
What is the difference between displacement and double displacement reactions? Write equations for these reactions.

Question 14
In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.

Question 15
What do you mean by a precipitation reaction ? Explain by giving examples.

Question 16
Explain the following in terms of gain or loss of oxygen with two examples each:
(a) Oxidation and
(b) Reduction.

Question 17
A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.

Question 18
Why do we apply paint on iron articles ?

Question 19
Oil and fat containing food items are flushed with nitrogen. Why ?

Question 20
Explain the following terms with one example each (a) Corrosion, (b) Rancidity.

Chapter 1 of NCERT Solutions for Class 10 Science has good weightage and there will be questions being asked every year from this chapter in this chapter, students learn the basics of chemical reactions, their types and the effects of a chemical oxidation reaction.

Now that we are provided all the necessary information regarding NCERT Solutions for 10 Science Chapter 1 Chemical Reactions and Equations we hope these detailed NCERT Solutions are helpful. Students can also check out NCERT Books, CBSE Syllabus, and CBSE Sample Papers at schoollearners.com for free.

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