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 solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

Coke is more valuable when used:

  1. as a fuel for industrial boilers

  2. as an oxidising agent

  3. as a reducing agent

  4. as a fuel in domestic ovens
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coke is majorly used in the extraction of the metals from their ores. It is used as a reducing agent. Hence, coke is more valuable in metal extraction industry, when used as a reducing agent.

Multiple choice evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

In chulhas, gaps are left between the logs are there to :

  1. to decrease the ignition temperature of the fuel

  2. to allow the air to enter and facilitate fuel burning

  3. to cut off the supply of air

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

In chulhas, gaps are left between the logs are there to to decrease the ignition temperature of the fuel

Multiple choice evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

The fuel formed by the marine animal and plant remnants is :

  1. Petroleum

  2. Electricity

  3. Biogas

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

A) Petroleum

Petroleum products include transportation fuels; fuel oils for heating and electricity generation; asphalt and road oil; and feedstocks for making the chemicals, plastics, and synthetic materials that are in nearly everything we use.

Multiple choice evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

How fossil fuels are formed:

  1. Formed from remains of dead plants and animals under the earth

  2. Formed from remains of living plants and animals under the earth

  3. Formed from charcoal

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anaerobic decomposition of dead animals and plants along with exposure to Earth's heat and pressure resulted in buried source of energy: fossil fuels.

Multiple choice evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

Example for fossil fuel is .............

  1. Copper

  2. Iron

  3. Magnesium

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

Coal is a fossil fuel which is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. Coal is composed primarily of carbon, along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. A fossil fuel, coal forms when dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite. This involves biological and geological processes that take place over time. Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and heat, and is also used for industrial purposes, such as refining metals. Coal is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases. The extraction of coal, its use in energy production and its byproducts are all associated with environmental and health effects including climate change.

Multiple choice evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

The fuel formed by the remnants of marine life is :

  1. petroleum

  2. electricity

  3. biogas

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

Petroleum is a fossil fuel formed from the remains of ancient marine organisms that were buried under layers of sediment and subjected to high pressure and heat over millions of years. Coal is derived from land vegetation, while biogas is produced from organic waste.

Multiple choice evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

Which of the following is formed under the earth by the decomposition of plant matter by anaerobic bacteria lying under water?

  1. Coal gas

  2. Petroleum gas

  3. Natural gas

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

Natural gas is formed by the anaerobic decomposition of organic matter, such as plant material, trapped under water or sediment. This process occurs deep underground over long periods.