Question 1 What is a physical change. Give example? Question 2 What is a chemical change. Give example ? Question 3 Give the main differences between physical and chemical change?
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Colloids - Class 9, Is matter around us pure
Question 6 What are emulsions.Give example? Question 7 What are foam.Give example? Question 8 What is the difference between solution and […]
2026-07-17 -
Force is due to Interaction - Class 8, Force and pressure
Question 1 What is meant by saying that force is due to an interaction? Question 2 Give an example to illustrate that force is due to an interaction? Interaction Interaction involves two objects.
2026-07-17 -
Physical and Chemical Change - Class 9, Is matter around us pure
Question 1 What is a physical change. Give example? Question 2 What is a chemical change. Give example ? Question 3 Give the main differences between physical and chemical change?
2026-07-17 -
Indicators - Acid Bases and Salts, Class 10
Question 4 What is the colour of Phenolphthalein in acidic and basic medium? Question 5 What is the colour of methyl orange in acidic and basic medium? Acid, Bases and […]
2026-07-10 -
Common Salt - Acid Bases and Salts, Class 10
Question 1 What is a salt? Give example? Question 2 Give the name and formula of any two salts. Also name the acids from which they are formed? Question 3 What is meant by family of salts?
2026-07-10 -
Common in Acids - Acid Bases and Salts, Class 10
Question 1 Why HCl show acidic behaviour whereas glucose and alcohol do not show acidic behaviour? Question 2 Why does an aqueous solution of an acid conduct electricity? Question 3 Why does dry HCl gas not change the colour of the dry litmus paper? Question 4 Why does distilled water no conduct electricity whereas rain […]
2026-07-10 -
Indicators - Acid Bases and Salts, Class 10
Question 4 What is the colour of Phenolphthalein in acidic and basic medium? Question 5 What is the colour of methyl orange in acidic and basic medium? Acid, Bases and […]
2026-07-17 -
Variety in cell number - Cell structure and functions, Class 8
Question 1 What are single-celled organism? Give example? Question 2 What are multicellular organism? Give example? Question 3 What is fertilised egg cell?
2026-07-17 -
Burning of Fuels leads to Harmful Products - Class 8, Combustion and Flame
Question 2 Name the fuel which is gradually replacing petrol and diesel in automobiles? Question 3 Why LPG is a better domestic fuel than wood? Question 4 What are the disadvantages of burning wood as fuel?
2026-07-17 -
Types of Respiration - Class 10, Life processes
Question 1 What is aerobic respiration? Question 2 What is anaerobic respiration? Question 3 What are the end products of aerobic respiration? Question 4 What are the end products of aerobic respiration?
2026-07-17