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

Coke is used for

  1. Formation of coal

  2. Extraction of metals

  3. Refining of oil

  4. Fractional distillation of retroleum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coke is used in extraction process of metals

Multiple choice

Major constituent of LPG is ____.

  1. Ethene

  2. Butane

  3. Propane

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

Both propane and butane are present in LPG but butane is present in more concentration .butane is major component of liquified petroleum gas.

Multiple choice

Which one of the following has the highest fuel value?

  1. Hydrogen

  2. Charcoal

  3. Natural gas

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

Fuel value (calorific value) refers to the heat released per unit mass. Gasoline has a higher energy density compared to charcoal or natural gas in many practical contexts.

Multiple choice

Gun powder consists of a mixture of

  1. Sand and TNT

  2. TNT and Charcoal

  3. Nitrate, Sulphur and Charcoal

  4. Sulphur, Sand and Charcoal
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Black powder, or gunpowder, is a mixture of potassium nitrate (saltpeter), sulfur, and charcoal.

Multiple choice

Which of the following are the major constituents of LPG?

  1. Methane and ethane

  2. Hydrogen, methane and carbon monoxide

  3. Hydrogen and carbon monoxide

  4. Butane and propane
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

LPG, or Liquefied Petroleum Gas, is primarily composed of hydrocarbons that are easily liquefied under pressure. The major constituents are propane and butane.

Multiple choice

Which of the following are the major constituents of coal gas?

  1. Methane and ethane

  2. Hydrogen, methane and carbon monoxide

  3. Hydrogen and carbon monoxide

  4. Butane and propane
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coal gas is a flammable gaseous fuel made from coal. Its primary components are hydrogen, methane, and carbon monoxide.

Multiple choice

Which of the following statements is/are false? a. When charcoal burns with the oxygen in the air, a lot of heat, but only a little light is produced. b. Carbon dioxide is necessary for combustion to take place. c. Respiration is a kind of slow combustion of food which takes place to produce heat in the body.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is a wrong option. Statement 'b'  is a false statement. Oxygen is necessary for combustion to take place.