Chemistry · General Awareness

Carbon and Fossil Fuels

1,898 Questions

Review fundamental concepts regarding carbon compounds, coal distillation, and fossil fuel formation. This segment covers the chemical properties and industrial applications of natural gas and crude oil. Practicing these questions will strengthen your chemistry foundation for general science sections.

Coal distillationPetroleum formationProperties of crude oilNatural gas applications

Carbon and Fossil Fuels Questions

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

Which of the following is a fossil fuel?
I Tar
II Coal
III Petroleum

  1. I only

  2. I and II only

  3. II and III only

  4. I, II and III
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coal and petroleum are fossil fuels. Tar is not a fossil fuel. 

A fossil fuel is obtained from the remains of organisms. It is a natural fuel.
Tar is a black mixture of hydrocarbons and free carbon. It is obtained from several organic compounds during destructive distillation. Tar can also be produced from wood, coal, petroleum or peat.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

Which of the following is an example of fossil fuel?

  1. Coal gas

  2. Coke

  3. Natural gas

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

Fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis. 

Natural gas is a mixture of gases which are rich in hydrocarbons. All these gases (methane, nitrogen, carbon dioxide etc) are naturally found in atmosphere. 
Natural gas reserves are deep inside the earth and is a fossil fuel. coal gas, coke and producer gas are the derivatives of coal, not naturally occurring.

Hence, option C is correct.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources)

Which of these is not a fossil fuel?

  1. Coal

  2. LPG

  3. Bio gas

  4. All are fossil fuel
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

LPG is a fossil fuel which contains low carbon. It is a fossil fuel that does not occur during isolation. LPG is found naturally in combination with other hydrocarbons, crude oil, and natural gas. LPG is produced during natural gas processing and oil refining process.

Coal and Natural gas are also the fossil fuels and are obtained from earth crust.

Biogas is a mixture of methane ,carbon dioxide ,hydrogen and hydrogen sulphide. it is produced by anaerobic degradation of animal waste such as cow dunk in presence of water.

Hence options C  is correct.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Depletion of petrol can be controlled by:

  1. using CNG

  2. using LPG

  3. using kerosene

  4. none of above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Petrol is a limited resource and can be exhausted if not used wisely. Natural gas is stored under high pressure as CNG. CNG can be used as a fuel instead of petrol as it is less polluting. It is a cleaner fuel. 

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Which gas is obtained from during processing of coal?

  1. Carbon dioxide

  2. Coal gas

  3. Sulphur dioxide

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

Coal gas is a flammable gaseous fuel made from coal and supplied to the consumer through a piped distribution system. It is a byproduct of the destructive distillation of coal.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Which of them is used as solvents for dry cleaning?

  1. diesel

  2. Kerosene

  3. Petrol

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

Dry cleaning is the procedure of cleaning clothes by using chemical solvents (the substance which can dissolve in other substance ). Petrol is a chemical which is used as a solvent for dry cleaning of clothes.


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

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Petroleum is a limited natural product obtain from: 

  1. dead living organism

  2. organism in sea

  3. wild animals

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

Petroleum is formed from the remains of ancient marine organisms (plankton and algae) that were buried under layers of sediment and subjected to high pressure and temperature over millions of years.