Chemistry · General Awareness

Carbon and Fossil Fuels

1,756 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 commercial applications bioenergy biofuels making biofuels technological and industrial development

Natural gas that was formed from ancient prehistoric forests is called

  1. Fossil fuels

  2. Petroleum

  3. Gobar gas

  4. LPG
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fossil fuels are energy sources formed from the remains of ancient plants and animals buried under high pressure and temperature over millions of years. Petroleum is a specific type of fossil fuel, not the general term for all such materials.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following is/are measures taken for protection of fossil fuel?

  1. Gasification of coal

  2. CNG

  3. Gasohol

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

Gasification of coal, use of CNG, and use of gasohol are all methods to either extend the life of fossil fuel reserves or reduce the environmental impact of their consumption, thus serving as measures for their protection or sustainable use.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

LPG cooking gas is

  1. Low pressure gas

  2. Biogas

  3. Fossil fuel

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

Liquefied petroleum gas or liquid petroleum gas (LPG or LP gas), also referred to as simply propane or butane are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment and vehicles. 

LPG is prepared by refining petroleum or "wet" natural gas and is almost entirely derived from fossil fuel sources, being manufactured during the refining of petroleum (crude oil) or extracted from petroleum or natural gas streams as they emerge from the ground. Thus, the correct answer is option C.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Jatropha is used for the production of biodiesel because

  1. It can be easily grown under harsh condition

  2. It is a non-edible oil

  3. It is volatile

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biodiesel is produced from jatropha oil. Jatropha is used because it is not edible therefore, it will not create problems for humans in terms of food shortage. It also has the ability to withstand drought, naturally, repel pests, and grow in subprime soil and combat soil erosion. Thus, the correct answer is option D.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following is fossilized remains of organic materials?

  1. Natural gas

  2. Petrol

  3. Gold

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A fossil is the remains of a once-living plant or animal that was preserved in rocks or other materials. It includes fossil fuels (oil, coal, petroleum, and natural gas) that have been formed from the remains of these dead plants and animals.It includes bones or shells of animals and leaves, seeds, or woody parts of plants. Which are subjected to tremendous pressure, heat and other conditions that convert them into fossil fuels.
So, the correct answer is 'Both A and B'
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Find the odd one out.

  1. Bioalcohol

  2. Green diesel

  3. Bioethers

  4. Petroleum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bioalcohol, green diesel, and bioethers are all modern types of biofuels derived from biomass sources. Petroleum is a fossil fuel formed over millions of years from ancient organic remains, making it the odd one out among renewable biofuel options.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

It is possible to extract maximum energy from wood through 

  1. Biomass

  2. Cracking

  3. Direct burning

  4. Gasification
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gasification is an efficient means of converting low value fuels and residuals into a synthesis gas (or syngas). Syngas is used to produce power, steam, hydrogen, and basic chemicals such as methanol and ammonia.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

The most abundant fossil fuel is

  1. Natural gas

  2. Petrol

  3. Diesel

  4. Coal
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Fossil fuels are obtained from organic matter that has decomposed under the intense pressure and heat of the earth's crust. According to a data published in 2013 by the International Energy Agency, coal was found to be the most abundant fossil fuel. Thus, the correct answer is option D.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Petrocrops are plants

  1. Grown near oil fields

  2. Used in refining crude oil

  3. Whose fossil remains formed crude oil

  4. From which petrol-like fuels can be derived
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Petrocrops are specific plants that produce hydrocarbons similar to petroleum, which can be extracted and refined into fuel. They are not related to the formation of ancient crude oil.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Coal has been mainly formed by 

  1. Bryophytes

  2. Pteridophytes

  3. Angioperms

  4. Algae
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Bryophytes are group of non vascular land plants including hornworts, liverworts and mosses. Peat is a fuel which is produced from dried bryophytes, typically sphagnum. Enormous deposits of peat is accumulated which is later converted into coal.
  • Hence coal has been mainly formed by bryophytes.
  • So,the correct answer is 'Bryophytes'.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Domestic cooking gas cylinder contains

  1. Coal gas

  2. Liquid petroleum gas

  3. Diesel oil

  4. Alcohol
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • The domestic cooking gas cylinder contains Liquid petroleum gas.
  • Its composition is propane or butane or a mixture of both, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment, and vehicles.
  • So, the correct answer is 'Liquid petroleum gas'.
Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Amount of ethanol that can be added in petrol and used in conventional gasoline engines is

  1. 5-10%

  2. 10-20%

  3. 15-25%

  4. 25-40%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Amount of ethanol that can be added in petrol and used in conventional gasoline engines is about 5% to 10%. This is done because ethanol is a particulate-free burning fuel source. At many gas stations, E10 ethanol is widely used. It is a mixture of 10% ethanol with 90% gasoline.  

Thus, the correct answer is '5-10%.'

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Mineral oil is

  1. Mustard oil

  2. Petroleum

  3. Liquefied petroleum gas

  4. Palm oil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Petroleum is dark coloured thick crude oil and is also called fossil fuel. It is known as mineral oil as it is procured during refining and extraction of crude oil.
A. Mustard oil is obtained from the seeds of the black and white mustard plant. These oils are edible vegetable oils. 
B. Petroleum is mineral oil.
C. LPG is prepared by oil refining or during natural gas processing. 
D. Palm oil is obtained from palm fruit. 
Hence, the correct answer is 'Petroleum'