Short answer type questions Question 1. What do you understand by the good and bad conductors of electricity? List some examples of each Question 2. List the names of some liquids that conduct electricity. Question 3. Why the water from taps is considered a good conductor of electricity? Question 4. What are the chemical …
Short answer type questions Question 1. Name four natural resources. Question 2. Write the difference between inexhaustible and exhaustible natural resources Question 3. Write the uses of coal. Name some products of coal. Question 4. What are fossil fuels? Question 5. Which gas is produced by the burning of coal? Question 6. What is …
Short answer type questions Question 1. What is lightning? How does it affect us? Question 2. What do understand by a charged object? How will you find if the object is charged or not? Question 3. Explain with an example that charges of the same kind repel each other. Question 4. What is an …
Metals and Non-Metals can be distinguished from one another on the basis of their physical and chemical properties.
Short answer type questions Question 1. What is lightning? How does it affect us? Question 2. What do understand by a charged object? How will you find if the object is charged or not? Question 3. Explain with an example that charges of the same kind repel each other. Question 4. What is an …
Short answer type questions Question 1. What do you mean by the term combustion? Question 2. Why food is known as the fuel for our body? Question 3. What is Ignition temperature? Question 4. What are inflammable substances? Give two examples. Question 5. Why CO2 is considered the best extinguisher for electrical equipment and …
Short answer type questions Question 1. Name two physical and chemical properties of materials. Question 2. How can we group materials into good and bad conductors of electricity? Question 3. What do you understand by non-metals? Question 4. Define the term sonorous. Question 5. What happens to a copper vessel when it is exposed …
Short answer type questions Question 1. List some natural and artificial fibres. Question 2. What are synthetic fibres? Question 3. What is a polymer? Question 4. What are the different types of synthetic fibres? Question 5. What is cellulose? Question 6. What are thermoplastics? Question 7. Define polyester. Question 8. What is acrylic? Question …
Question 1. Fill in the blanks. (a) Most liquids that conduct electricity are solutions of, ______________ and ______________. (b) The passage of an electric current through a solution cause ______________ effects. (c) If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the ___________terminal of the battery. (d) The …
CLASS 8 Chapter 14 Chemical Effects of Electric Current Read More »
Question 1. What are the advantages of using CNG and LPG as fuels? Solution 1. The following are the advantages of using compressed natural gas (CNG) and liquid petroleum gas as fuels; They have low prices They are easily available. They do not cause any pollution as they burn with smokeless flame. They leave no …
