Tag: ways to reduce air pollution

Quizzes (0) Questions (33)

Questions Related to ways to reduce air pollution

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

Carbon monoxide is naturally produced by oxidation of   X  , a gas present in swamp area while it can be produced by   Y     of fuels containing carbon.

  1. X - $CO _{2}$, Y = complete combustion
  2. X - $CH _{4}$, Y = incomplete combustion

  3. X = C, Y = oxidation
  4. X = $CH _{4}$, Y = complete combustion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbon monoxide is basically formed when an object is burned. Methane, which is a natural gas produces  CO after oxidation. Methane, produces less CO as compared to other units of gas. Incomplete combusion results in creation of poisonous CO. It occurs when supply of oxygen is poor. 

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

Green plants during day time absorb :

  1. $O _{2}$
  2. $CO _{2}$
  3. $CO$
  4. $N _{2}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A plant, like an animal, needs energy. Plants have a process called photosynthesis to transform light energy into chemical energy (glucose sugar). Plants produce oxygen during photosynthesis, the oxygen is derived from the water it intakes and not from the carbon dioxide. 


The hydrogen from water, the carbon from carbon dioxide, and the oxygen from carbon dioxide go into the glucose compound  (C$ _6$H$ _{12}$O$ _6$)

Hence, the correct option is $\text{B}$

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

Governments have already taken action against air pollution by introducing ________.

  1. wind energy

  2. solar energy

  3. renewable energy

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Governments have already taken action against air pollution by introducing green energy. Like wind energy, solar energy and renewable energy to minimize burning of  fuels which cause heavy air pollutions.

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

The concept of  'Reduce, Reuse and Recycle' helps us to:

  1. minimize the dependence on producing new things.

  2. minimize the dependence on producing old things.

  3. maximize the dependence on producing new things.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The concept of 'Reduce, reuse and recycle helps us to minimize the dependence on producing new things. 

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

Exhaust motor vehicle is the main source of:

  1. manganese

  2. carbon monoxide

  3. sulfur dioxide

  4. nitrogen oxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline, petrol, biodiesel blends, diesel fuels, fuel oils, or coal. The largest part of most combustion gas is nitrogen. water vapour (except with pure-carbon fuels), and carbon dioxide (except for fuels without carbon); these are not toxic or noxious. A relatively small part of combustion gas is undesirable noxious or toxic substances, such as carbon monoxide (CO) from incomplete combustion.

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

If heat radiated from Earth's surface is retained, outcome will be:

  1. formation of smog

  2. green house effect

  3. van der Waals forces of attraction among smoke particles

  4. all of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere. The exchange of incoming and outgoing radiation that warms the Earth is often referred to as the greenhouse effect because a greenhouse works in much the same way. Incoming UV radiation easily passes through the glass walls of a greenhouse and is absorbed by the plants and hard surfaces inside. Weaker IR radiation, however, has difficulty passing through the glass walls and is trapped inside, thus warming the greenhouse. This effect lets tropical plants thrive inside a greenhouse, even during a cold winter.

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

Carbon monoxide (CO) causes:

  1. numbness of brain

  2. secretion of adrenaline

  3. weakening of the wall of alveoli

  4. risk of atherosclerosis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Carbon monoxide is an air pollutant. It is found in cigarette smoke and emissions from motor vehicles, industrial processes, and poorly ventilated combustion sources.

Carbon monoxide could manifest its toxic effects on the heart and blood vessels in two ways, either by causing acute, short-term effects on oxygen delivery or by contributing to the development of cardiovascular diseases such as atherosclerosis. Atherosclerosis is a progressive disease characterized by thickening of the arteries and a buildup of deposits of fat, cholesterol, cells, and connective tissue in the inner lining of the blood vessels.

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

Adsorption method uses_____to separate pollutants from air.

  1. funnel

  2. porous solid

  3. sand

  4. scrubber
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In adsorption method,the polluted air is passed through porous solid adsorbents kept in suitable containers. The gaseous pollutants are adsorbed at the surface of the porous solid and clean air passes through.

Multiple choice chemistry air and water pollution ways to prevent air pollution ways to reduce air pollution reducing air pollution

In absorbtion method, the polluted air containing gaseous pollutants is passed through:

  1. porous material with very small holes

  2. flame combuster

  3. scrubber containing a suitable liquid absorbent

  4. strainer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In absorption method,the polluted air containing gaseous pollutants is passed through a scrubber containing a suitable liquid absorbent. The liquid absorbs the harmful gaseous pollutants present in air.