1.6 x 10-4
6.3 x 10-11
6.3 x 10-4
1.6 x 10-11
Correct answer is B
No explanation has been provided for this answer.
An emulsion paint consists of ?
gas or liquid particles dispersed in liguid
liquid particles dispersed in liquid
solid particles dispersed in liquid
solid particles dispersed in solid
Correct answer is B
An emulsion is a mixture of two immiscible liquids, in emulsion one liquid is dispersed in another liquid. Examples are paint, milk, mayonnaise, cream, etc.
I, II, III and IV
I and II only
II only
I, III and IV only
Correct answer is A
The solubility of a gas depends on the following; temperature; the higher the temperature the lower the solubility of a gas. pressure; the higher the pressure, the higher the solubility of a gas. others are the nature of solvents and the nature of solutes.
Water for town supply is chlorinated to make it free from?
bad odour
bacteria
temporary hardness
permanent hardness
Correct answer is B
No explanation has been provided for this answer.
Which of the following gases dissolves in water vapour to produce acid rain during rainfall?
Oxygen
Carbon (II) oxide
Nitrogen
Sulphur (IV) oxide
Correct answer is D
No explanation has been provided for this answer.