Question 1 What do you mean by separation of mixtures? Question 2 How will you separate a mixture containing sand and sugar? Question 3 Describe a method to separate a mixture of sand and salt? Question 4 How will you separate a mixture of salt and sugar? Question 5 Name a solvent used to separate a mixture of sulphur and carbon? Question 6 How will you separate … [Read more...] about Separation of Mixture
Class 9
Physical and Chemical Change
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? Physical and Chemical Changes Physical Changes The changes in which no new substance are formed are called physical changes. In a physical change, the substances involved do not change … [Read more...] about Physical and Chemical Change
Colloids
Question 1 What are colloids. Give example? Question 2 What do you mean by Tyndall effect? Question 3 Give properties of colloids? Question 4 What are sol.Give example? Question 5 What are aerosol.Give example? Question 6 What are emulsions.Give example? Question 7 What are foam.Give example? Question 8 What is the difference between solution and … [Read more...] about Colloids
Suspension
Question 1 What are suspensions. Give example? Question 2 Give properties of suspension? SUSPENSIONS Those substances which are insoluble in water form suspension. A suspension is a heterogeneous mixture in which small particles of a solid are spread throughout a liquid without dissolving in it. For Example: Chalk+water, Muddy Water, sand+water, Flour+water … [Read more...] about Suspension
Solution
Question 1 Define the term solute? Question 2 Define the term solvent? Question 3 Define the term solution. Give examples? Question 4 Give few properties of solution? Question 5 What is an aqueous solution ? Question 6 What is a non-aqueous solution? Question 7 Give an example of liquid in liquid solution ? Question 8 How will classify the … [Read more...] about Solution