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:

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 3:

Which of the following atmospheric layer is used in the long distance communications?

Thermosphere

Troposphere

Stratosphere

Mesosphere

Question 4:

The cell which is used to obtain chlorine gas and metallic sodium when electricity is passed through aqueous solution of sodium chloride is

Galvanic cell

Electrolytic cell

Primary cell

Secondary cell

Question 5:

In electrochemical cell, the direction of current flow-

is opposite to that of proton flow

is same to that of electron flow

from anode to cathode

is opposite to that of electron flow

Question 6:

A potential difference develops between the electrode and the electrolyte is called

Standard electrode potential

Cell potential

Standard cell potential

Electrode potential

Question 7:

Choose the correct statements about acid rain?

Acid rain is highly acidic and corrosive
Acid rain does not promote corrosion of metallic structure
Acid rain reacts with limestone and marble of historical monuments
Acid rain does not affect plants and aquatic life
Acid rain leads to loss of soil fertility

1,2,3,4

1,2,3

2,3,4,5

1,3,5

Question 8:

Which of the following particulate which cause bronchitis?

Lead oxide

Dust and carbon particles

Mercury

Sulphur dioxide

Question 9:

Discharge of hot effluents into rivers or lakes

Increased the amount of dissolved oxygen in water

Maintained the amount of dissolved oxygen in water

Decreased the amount of dissolved oxygen in water

First increase and then decrease the level of dissolved oxygen in water.

Question 10:

Which of the following pollutant has a strong smell of rotten egg?

Carbon monoxide

Sulphur dioxide

Hydrogen sulphide

Nitrogen oxides

NTPC CBT-2 Chemistry Quiz - 58

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NTPC CBT-2 Chemistry Quiz - 58

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