RRB GROUP D Chemistry Quiz

Question 1:

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 2:

Which of the following statement is not true?

Excessive phytoplankton growth within water is a cause of water pollution.

Organic wastes are non-biodegradable.

Pathogens are the disease causing agents

Heavy metals present in water damages kidneys , liver and central nervous system.

Question 3:

Ammonium phosphate is an example of

Mixed fertilizer
Synthetic fertilizer
Natural fertilizer
Manures

1,3

1,2

2,3

1,3,4

Question 4:

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 5:

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

Fuel cells

Dry cells

Mercury cells

Lead storage battery

Question 6:

Which of the following particulate which cause bronchitis?

Lead oxide

Dust and carbon particles

Mercury

Sulphur dioxide

Question 7:

Chemicals like phosphates present in fertilizers or detergents mix in water bodies cause excessive growth of-

Algae

Insects

Spirogyra

Animals

Question 8:

Water can be conserved by

Constructing dams and reservoirs
Adopting water harvesting techniques
Cutting more trees
By using drip irrigation method

1,2,4

1,2,3

2,3,4

1,3,4

Question 9:

Bleaching powder is added to the water

To remove the suspended impurities

To remove the large quantity of salt

To make it free from all harmful micro-organisms

To make it odourless

Question 10:

Which of the following is the source of radioactive pollution?

Pollution created from fuels used in atomic reactors.

Pollution created from discharge of untreated domestic sewage into rivers

Pollution created from incomplete combustion of fuels

Pollution created from fertilizers and chemical industries

RRB GROUP D Chemistry Quiz - 60

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RRB GROUP D Chemistry Quiz - 60

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