NTPC CBT-2 Chemistry Quiz

Question 1:

Which oxides are used as drier in paints?

Cobalt
Potassium
Manganese
Calcium

1,2,3

1,3

2,4

2,3,4

Question 2:

Plasticizers are added during the manufacture of paints

In order to provide elasticity to the film
In order to increase cracking of film
In order to decrease elasticity of the film
In order to minimize cracking of film

1,2,3

1,4

3,4

2,4

Question 3:

Which of the following are nitrogen fertilizers?

Calcium cyanamide
Urea
Calcium super phosphate
Ammonium sulphate

1,2,3,4

1,2,4

2,3,4

1,3,4

Question 4:

Potassium nitrate is a salt and is used

In gun powder

In paints

To make soap

To make fertilizers

Question 5:

Which one among the following is the major constituent of Pyrex glass?

Borax and sodium oxide

Borax and silica

Silica and sodium oxide

Calcium oxide and sodium oxide

Question 6:

Which of the following is not correct about the effects of depletion of ozone layer?

It lead to ageing of skin, cataract, sunburn and skin cancer

It also increases evaporation of surface water through the stomata of the leaves

It increase the moisture content of the soil.

Increase in UV radiations damage paints and fibres

Question 7:

Ammonium phosphate is an example of

Mixed fertilizer
Synthetic fertilizer
Natural fertilizer
Manures

1,3

1,2

2,3

1,3,4

Question 8:

Which of the following statement is incorrect about electrical conductance?

Flow of electricity is due to movement of ions.

Conduction decreases with increase of temperature.

Physical and chemical changes take place

Movement of matter takes place

Question 9:

Which of the following cell is used in automobiles and invertors?

Fuel cells

Dry cells

Mercury cells

Lead storage battery

Question 10:

Which of the following particulate produced by the combustion of fossil fuels?

Cement

Lead oxide

Dust

Smoke

NTPC CBT-2 Chemistry Quiz - 59

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NTPC CBT-2 Chemistry Quiz - 59

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