English Medium Class 9 - CBSE Question Bank Solutions

Give two reasons to justify that An iron almirah is a  solid.

Compare the properties of solids, liquids and gases in tabular form.

Give two reasons for saying that wood is a solid.

‘‘The properties of the product are different from those of the constituents''. State whether this statement best describes an element, a compound or a mixture.

What is the major difference between a solution and an ordinary mixture ?

Fill in the following blanks with suitable words :

Brine is a ..............whereas alcohol is a...............

State three reasons why you think air is a mixture and water is a compound.

Compare the properties of metals and non-metals with respect to

1. alleability
2. ductility
3. electrical conductivity.

Choose the solutions from among the following mixtures :

Soil, Sea-water, Air, Coal, Soda-water

Is air a mixture or a compound ? Give three reasons for your answer.

Give two reasons for supposing that water is a compound and not a mixture.

Define a mixture. Give two points of evidence to show that sugar solution is a mixture.

List five characteristics by which compounds can be distinguished form mixtures.

Explain why, a solution of salt in water is considered a mixture and not a compound.

The value of acceleration due to gravity of earth :

State the main points of difference between homogeneous and heterogeneous mixtures.

Classify the following materials as homogeneous mixtures and heterogeneous mixtures :

Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.

What is a mixture ? Give two example of mixtures.

What is meant by (i) homogeneous mixtures, and (ii) heterogeneous mixtures ? Give two examples of homogeneous mixtures and two of heterogenous mixtures.

Which of the following is not a mixture ?