Question

1.Why mercury used in making thermometre?

2. List five liquids that are transparent.

3.Lemon juice is.......... in water.

4.Write any four properties of materials.

5.Name two gases which is soluble and insoluble in water.​

Answer 1

Answer:

1. because it expands on heating.

2. water, limewater, whisky, filtered sea water, tea or coffee.

3. soluble

4. mass, toughness, hardness and malleability.

5. soluble= oxygen, carbon dioxide

insoluble= Methane, Nitrogen,

Answer 2

Answer:

1 ) It is used in thermometer because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it is used in a thermometer

2) water, acetone, alcohol, vinegar benzene are five liquid that are transparent

3)Lemon water is simply the juice from lemon mixed with water. Lemon water is simply mixed with fresh lemon juice

4) Mass , Toughness Hardness and Malleability

5) chlorine and argon are insoluble in water and oxygen and carbon dioxide is soluble in water