Home
Free Study Material
CBSE
Syllabus
Class 9
Class 10
Class 11
Class 12
Sample Papers
Class 10
Class 12
Important Questions
Class 9
Class 10
Class 11
Class 12
Previous Year Papers
Class 9
Class 10
Class 11
Class 12
Practice Papers
Class 9
Class 10
Class 11
Class 12
Topper Tips
Class 10
Class 12
Topper Answer Sheet
Class 10
Class 12
Textbooks
CBSE Publication
Class 9
Class 10
Class 11
Class 12
Comic Books
Class 9
Class 10
Class 11
Class 12
CISCE
Syllabus
Class 10
Class 12
Sample Papers
Class 10
Class 12
Previous Year Papers
Class 10
Class 12
Marking Scheme
Class 10
Class 12
NCERT
Books
Class 9
Class 10
Class 11
Class 12
Solutions
Class 9
Class 10
Exemplars
Class 9
Class 10
Class 11
Class 12
Rationalised Syllabus
Class 9
Class 10
Class 11
Class 12
NEET
Syllabus
Previous Year Paper
Important Question
CUET
Syllabus
Mock Paper
Previous Year Paper
UP
Board
Syllabus
Class 9
Class 10
Class 11
Class 12
Model Papers
Class 9
Class 10
Class 12
Buy Books
BOOKS
Class
12
Class
11
NEET
Class
10
Class
9
CUET
School Books
Class
1-8
Kindergarten
Level
0-3
Teaching Resources
Free Specimen Book
Events & Workshops
Latest Updates ⚡
Lesson Plans
Doubt/Complaint?
Books Solution
Class 9
Class 10
Class 11
Class 12
Entrance Exams
K-8 Solutions
K-8 E-Learning
Work With Us
New Distributor/ Retailer
Workshop Speakers
Freelance Content
Writing
Full-time Jobs
Home
Free Study Material
Buy Books
Latest Updates ⚡
Teaching Resources
Free Specimen Book
Lesson Plans
Events & Workshops
Doubt/Complaint?
Book Solutions
Class 9
Class 10
Class 11
Class 12
Entrance Exams
K-8
Book Solutions
Assisted E-Learning
Work With Us
New Distributor/Retailer
Workshop Speakers
Freelance Content Writing
Full-time Jobs
Study Material
Textbooks
NCERT Books
Class 9
Class 10
Class 11
Class 12
NCERT Exemplar
Class 9
Class 10
Class 11
Class 12
CBSE Textbooks
Class 9
Class 10
Class 11
Class 12
Comic Books
Class 9
Class 10
Class 11
Class 12
Syllabus
CBSE
Class 9
Class 10
Class 11
Class 12
CISCE
Class 10
Class 12
Entrance Exams
CUET (UG) - 2024
NEET (UG) - 2024
UP Board
Class 9
Class 10
Class 11
Class 12
Official Sample Papers
CBSE
Class 10
Class 12
CISCE
Class 10
Class 12
UP Board
Class 9
Class 10
Class 12
Entrance Exams
CUET
NCERT Solutions 🔥
NCERT
Class 9
Class 10
Paper-wise Practice
CBSE
Class 9
Class 10
Class 11
Class 12
Previous Year Papers
CBSE
Class 9
Class 10
Class 11
Class 12
CISCE
Class 10
Class 12
Entrance Exam
NEET
CUET
Important Questions
CBSE
Class 9
Class 10
Class 11
Class 12
Entrance Exams
NEET
Topper's Corner
Topper Tips CBSE
Class 10
Class 12
Topper Answer Sheet CBSE
Class 10
Class 12
Shop Books
NEET
Mock Papers
NCERT
Solved Papers
CUET
Supplementary Booklets
Mock Papers
Final Revision
Practice Papers
Class 9
All Books
Question Bank
Sample Paper
Textbooks
Lab Manual
Class 10
All Books
CBSE Question Banks
ICSE Question Banks
CBSE Sample Papers
ICSE Sample Papers
Solved Papers
NCERT
Textbooks
Lab Manual
Class 11
All Books
Question Bank
Sample Paper
Textbooks
Class 12
All Books
Question Bank
Sample Papers
Solved Papers
NCERT
Class 1-8
All Books
Class 1
Class 2
Class 3
Class 4
Class 5
Class 6
Class 7
Class 8
Level 0-3 (KG)
Home
>
NCERT Solutions
NCERT Solutions
>
Science
Chapter 1
NCERT
Class 10
Science
Solutions
Question:
Balance the following chemical equations:
Answer:
More NCERT Questions
Download Free PDF
(All Q's of this Chapter solved)
Explain the following terms with one example each: (a) Corrosion (b) Rancidity.
Oil and fat-containing food items are flushed with nitrogen. Why?
Why do we apply paint on iron articles?
A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.
Explain the following in terms of gain or loss of oxygen with two examples each: (a) Oxidation (b) Reduction
What do you understand by precipitation reaction? Explain with examples.
In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.
Write one equation each for the decomposition reactions where energy is supplied in the form of heat, light or electricity.
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Why is respiration considered an exothermic reaction? Explain.
What is meant by exothermic and endothermic reaction? Give an example.
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
Translate the following statements into chemical equations and then balance them.(a) Hydrogen gas combines with nitrogen to form ammonia.(b) Hydrogen sulfide gas burns in the air to give water and sulfur dioxide.(c) Barium chloride reacts with aluminum sulphate to give aluminum chloride and a precipitate of barium sulphate.(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
What is a balanced chemical equation? Why should chemical equations be balanced?
What happens when dilute hydrochloric acid is added to iron filings? (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.
Fe2O3 + 2Al → Al2O3 + 2Fe What type of reaction is given above? (a) Combination reaction (b) Double displacement reaction. (c) Decomposition reaction. (d) Displacement reaction
Which statement is false regarding the reaction given below? 2PbO(s) + C(s) —> 2Pb(s) + CO(g) (a) Lead is reducing. (b) Carbon dioxide is getting oxidised.(c) Carbon is getting oxidised.(d) Lead oxide is getting reduced.
Identify the substances that are oxidised and the substances which are reduced in the following reactions:
Give an example of a double displacement reaction other than the one given in Activity 1.10 (NCERT). (i) 4Na(s) + O2(g) — 2Na2O(s) (ii) CuO (s) + H2(g) — Cu (s) + H2O(l)
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
Why is the amount of gas collected in one of the test tubes in text book Activity 1.7 (i.e., electrolysis of water) double of the amount collected in the other? Name this gas.
A solution of a substance ‘X’ is used for white washing.(a) Name the substance ‘X’ and write its formula.(b) Write the reaction of the substance ‘X’ named in (a) above with water.
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 a hydrochloric acid solution(in water) to produce sodium chloride solution and water.
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
Why should a magnesium ribbon be cleaned before burning in air?
Write the balanced chemical equation for the following and identify the type of reaction in each case:
Class 10 Important Questions
Maths
Science
Social Science
NCERT Solutions for Class 10
English
Math
Science
Social Science