Environmental Chemistry Test

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Environmental Chemistry Test - 46

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Weekly Quiz Competition

Question 1
1 / -0

Corrosion of statues and monuments occurs due to

A
Photochemical smog

B
Carbon monoxide

C
Acid rain

D
Methane

Solution

Acid rain is rich in sulphuric acid and nitric acid. These acids have corrosive effects on the building material. They get deposited on the limestone, sandstone, marble etc. and increase their corrosion when exposed to the rain and fog.
A. Photochemical smog causes respiratory illness.
B. Carbon monoxide causes a lack of oxygen in the body.
C. Acid rain corrodes the statues and monuments.
D. Methane is a greenhouse gas.
So, the correct answer is 'Acid rain'
Question 2
1 / -0

Acid rains are produced by

A
Excess $$NO_2$$ and $$SO_2$$ from burning fossil fuels

B
Excess production of $$NH_3$$ by industry and coal gas

C
Excess release of carbon monoxide by incomplete combustion

D
Excess formation of $$CO_2$$ by combustion and animal respiration

Solution

When the industrial activities use the fossil fuels, the excess of this usage results in the release of oxides of nitrogen and oxides of sulphur. These condense around in the troposphere and react with water to form the nitric acid, nitrous acid, and sulphuric acid. These acids precipitate with rain to form the acid rain. Acid rain is corrosive to the tissues, buildings etc.
Hence, the correct answer is 'Excess NO$$_{2}$$ and SO$$_{2}$$ from burning fossil fuels'.
Question 3
1 / -0

ODS means

A
Ozone developing substance

B
Ozone depleting substance

C
Ozone data source

D
Office data secrecy

Solution

ODS refers to the ozone-depleting substances like chlorofluorocarbons, methyl bromide, methyl chloroform, carbon tetrachloride, hexaflurocarbons that release the chlorine and oxides of chlorine. These react with the UV rays and ozone to release the nascent oxygen.
Hence, the correct answer is 'Ozone Depleting Substances'
Question 4
1 / -0

Ultraviolet radiations from sunlight causes a reaction that produce.

A
Fluorides

B
Carbon monoxide

C
Sulphur dioxide

D
Ozone

Solution

Ultraviolet radiations cause photochemical splitting of oxygen molecules in the stratosphere. The nascent oxygen combines with molecular oxygen to form ozone. In troposphere nascent oxygen comes from nitrogen dioxide.
Question 5
1 / -0

Photochemical smog always contains

A
Ozone

B
Methane

C
Carbon monoxide

D
Carbon dioxide

Solution

Photochemical smog is the result of the downhill chemical reactions of the primary pollutants with the sunlight to make the secondary pollutants. The primary pollutants like the hydrocarbons and oxides of the nitrogen react with the oxygen in the presence of the sunlight and form the secondary pollutants of the ozone and peroxyacetyl nitrate. Therefore, whenever the photochemical smog appears, it will have the ozone and PAN. Methane, carbon monoxide, carbon dioxide are the greenhouse gases.
Hence, the correct answer is 'Ozone'.
Question 6
1 / -0

Photochemical smog is related to pollution of

A
Air

B
Water

C
Soil

D
Nostoc

Solution

The photochemical reaction is caused by absorption of energy in the form of light. The word smog is formed of smoke and smog. Photochemical smog is the major contributor to air pollution and is composed of primary and secondary pollutants. Primary being the nitrogen oxides and volatile organic compounds released by vehicular emission and industries, secondary include ozone which forms as the reaction of primary pollutants with UV rays. These substances are highly reactive and adversely impact the environment, human and animal life. Many skin disease, lung disease, the headache can be associated with the photochemical smog.
Hence, the correct answer is 'Air'
Question 7
1 / -0

Etching of marble, limestone, jewellery, etc., is caused by pollutant.

A
$$CO_2$$

B
CO

C
$$SO_2$$

D
$$CH_4$$

Solution

Acidic compounds such as sulphuric acids and nitric acids are corrosive in nature and cause etching of marble, limestone and jewellery.
These are formed by oxides of nitrogen and sulphur and are corrosive.
So, the correct option is SO$$_2$$.
Question 8
1 / -0

Acid rain is due to.

A
Water pollution

B
Air pollution

C
Automobile pollution

D
Pesticide pollution

Solution

Air pollution resulting in high concentrations of sulphur dioxide and nitrogen dioxide leads to the production of acid by reaction with water vapour.
The formed acids of sulphur and nitrogen precipitate with rain forming acid rain.
So, the correct option is 'Acid Rain'.
Question 9
1 / -0

Number of ozone depleters identified by Viena convention for Protection of Ozone Layer (1992) is

A
19

B
17

C
15

D
13
Solution
- The Vienna Convention for the Protection of the Ozone Layer is a multilateral environmental agreement signed in 1985.
- It provided frameworks for international reductions in the production of chlorofluorocarbons due to their contribution to the destruction of the ozone layer and the resulting increase in the threat of skin cancer.
- The Number of ozone depleters identified by Viena convention for Protection of Ozone Layer (1992) is 19.
- So, the correct answer is '19'.
Question 10
1 / -0

Ozone depletion in stratosphere shall result in.

A
Forest fires

B
Increased incidence of skin cancer

C
Global warming

D
None of the above

Solution

Ozone depletion in Stratosphere shall result in infiltration of UV A and UV B rays that would result in increased incidents of skin cancer
So, the correct answer is'Increased incidence of skin cancer'

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Environmental Chemistry Test - 46

Result

Environmental Chemistry Test - 46

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SHARING IS CARING

Question 1

Photochemical smog

Carbon monoxide

Acid rain

Methane

Solution

Question 2

Excess $$NO_2$$ and $$SO_2$$ from burning fossil fuels

Excess production of $$NH_3$$ by industry and coal gas

Excess release of carbon monoxide by incomplete combustion

Excess formation of $$CO_2$$ by combustion and animal respiration

Solution

Question 3

Ozone developing substance

Ozone depleting substance

Ozone data source

Office data secrecy

Solution

Question 4

Fluorides

Carbon monoxide

Sulphur dioxide

Ozone

Solution

Question 5

Ozone

Methane

Carbon monoxide

Carbon dioxide

Solution

Question 6

Air

Water

Soil

Nostoc

Solution

Question 7

$$CO_2$$

CO

$$SO_2$$

$$CH_4$$

Solution

Question 8

Water pollution

Air pollution

Automobile pollution

Pesticide pollution

Solution

Question 9

19

17

15

13

Solution

Question 10

Forest fires

Increased incidence of skin cancer

Global warming

None of the above

Solution

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