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

Which of these fits gap 20?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.
Fire ____(17)_____ things hot by adding heat, and that raises temperature.
You _______(18)______ a fire with its hissing tongues of orange flame.
When something gets too hot and its temperature rises more than it can take, it bursts into hot flames and _____(19)_____ to burn.

Fire is _____(20)_____ than sunlight and it quickly heats up anything it touches.

  1. much hotter

  2. more hot

  3. much hot

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

Much indicates the intensity of heat. More hot is incorrect. The correct comparative is hotter.

Multiple choice

If we want to fight fire we should do :-

  1. We should cool down combustible substance below ignition temperature

  2. We should cut off the supply of oxygen

  3. We should remove combustible substance

  4. We should remove combustible substance
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

fact

Multiple choice

Coke is better fuel than coal because :

  1. it burns without smoke

  2. it burns to produce heat

  3. it is used for domestic cooking

  4. it burns with useful smoke
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Coke do not give out smoke while burning

Multiple choice

Petroleum is a mixture of

  1. Hydrocarbons

  2. Carbon and hydrogen

  3. Oxygen and nitrogen

  4. Oxygen, sulphur and carbon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

fact