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

Because of this graphite is an excellent

  1. fuel

  2. lubricant

  3. metal

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

Graphite's layered structure allows the layers to slide past each other easily, which makes it effective as a solid lubricant.

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Which of the following is a physical change?

  1. Burning fuel in your car

  2. Baking cookies

  3. Mixing vinegar and baking soda

  4. Respiration (inhaling oxygen gas and exhaling carbon dioxide gas)

  5. Evaporating water
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Evaporation is a physical change because when water evaporates no new substances are being made or nothing is being taken away from it, so in that case its still water. All the other options involve making new substances, so they all are chemical changes. 

Hence, $E$ is correct.

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

Coal, natural gas and petroleum are examples of_________.

  1. fossils

  2. natural resources

  3. artificial resources

  4. fuels
Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

Coal, natural gas and petrolium are examples of natural resources which are found as fossils beneath the surface of earth and act as sources of fuel.

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

What are the conditions required for the formation of coal?

  1. High temperature

  2. High pressure

  3. Low temperature

  4. Low pressure
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

High temperature and high pressure are required for the formation of coal. When dead vegetation got buried under the soil, they were compressed under the deposited soil. Carbon got trapped in them. High temperature and pressure then converts these dead vegetation to coal.

Multiple choice chemistry rocks and minerals carbon cycling mineral coal coal and its products

Coal is formed from:

  1. dead animals

  2. dead vegetation

  3. both of the above

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

Coal is obtained from dead vegetation or dead natural forests. The forests got buried under the soil, and then more soil got deposited over them. These forests got compressed under the soil and then carbon got trapped in it. High temperature and pressure convert these dead vegetation to coal.