Tag: acid deposition

Questions Related to acid deposition

Which statement describes a disadvantage of sulfur dioxide?

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. It can be used as a bleach in making wood pulp

  2. It can be used to kill bacteria in food

  3. It can be used to manufacture sulfuric acid

  4. It can dissolve the limestone in statues

Show answer
Correct Option: D
Explanation:

$\text{sulphur dioxide can dissolve the limestone.}$


$CaCO _3+H _2O \rightarrow Ca(OH) _2+CO _2$
$Ca(OH) _2+SO _2 \rightarrow CaSO _3+H _2O$

Sulphuric acid can not be used:

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. as a pickling agent

  2. in lead storage batteries

  3. in making of Rayon fibre

  4. in preparation of white paint

Show answer
Correct Option: D
Explanation:

Sulphuric acid is oxidising agent and can not be used in white paint as it may react with some materials and produce sulphides which are usually coloured.

Sulphuric acid can be used as:

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. hygroscopic agent

  2. oxidising agent

  3. sulphonating agent

  4. efflorescent

Show answer
Correct Option: A,B,C
Explanation:

$H _2SO _4$ acid can act as oxidising agent when it is concentrated and can also sulphonate aromatic compounds.

$SO _2$ is produced by:

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. petrol combustion

  2. smelting operation

  3. Both A and B

  4. ozone depletion

Show answer
Correct Option: C
Explanation:

Sulfur dioxide is the product of the burning of sulfur or of burning materials that contain sulfur.  It is produced by petrol combustion, coal combustion, petrolrefining and smelting operation.

Which of the following is the most important man-made source of sulfur dioxide?

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. Fossil fuel combustion

  2. Conversion of wood pulp to paper

  3. Both a and b

  4. Decaying of plant matter

Show answer
Correct Option: C
Explanation:

The most important man-made sources of sulfur dioxide are fossil fuel combustion, smelting, manufacture of sulfuric acid, conversion of wood pulp to paper, incineration of refuse and production of elemental sulfur.

The air pollution by $SO _2$ has which of the following effects on human beings?

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. Pulmonary oedema

  2. Airways inflammation

  3. Corneal haze

  4. All of above

Show answer
Correct Option: D
Explanation:

The air pollution by $SO _2$ can cause Corneal haze, breathing difficulty, airways inflammation, eye irritation, psychic alterations, pulmonary oedema, heart failure and circulatory collapse in human beings.  

Which of the following fuel additives may be used in marine engines to lower the emission of sulfur dioxide gases?

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. Calcium

  2. Magnesium carboxylate

  3. Copper

  4. Both A and B

Show answer
Correct Option: D
Explanation:

Fuel additives such as calcium additives and magnesium carboxylate may be used in marine engines to lower the emission of sulfur dioxide gases into the atmosphere.

In humans, sulphur dioxide causes:

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. asthma

  2. dwarfing

  3. chlorosis

  4. all of the above

Show answer
Correct Option: A
Explanation:

Sulphur dioxide is an air pollutant that has many health effects on humans. It causes asthma, bronchitis, emphysema in humans. It is particularly poisonous to trees causing Chlorosis and dwarfing.

Forest fires are _____ sources of sulphur dioxide.

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. man-made

  2. natural

  3. both a and b

  4. it is not a source of sulphur dioxide

Show answer
Correct Option: B
Explanation:

Sulphur dioxide is produced by both man-made and natural processes. Natural processes include volcanoes, forest fires and decaying plant matter.

The _________ is used in refineries to produce sulfur as a byproduct.

chemistry nitrogen and sulfur sulfur and its oxides acid deposition natural resources- air, water and land

  1. Claus process

  2. Heating process

  3. Limestone

  4. All of above

Show answer
Correct Option: A
Explanation:

Sulfur dioxide is a major air pollutant and has significant impacts upon human health. In addition, the concentration of sulfur dioxide in the atmosphere can influence the habitat suitability for plant communities, as well as animal life. Sulfur can also be removed from fuels before burning, preventing formation of $SO _2$ when the fuel is burnt. The Claus process is used in refineries to produce sulfur as a byproduct.