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

Match the constituents of petroleum with their uses:

Constituent of petroleum Uses
a. LPG 1. Paints
b. Gasoline 2. Production of carbon black
c. Parrafin wax 3. Solvent for dry cleaning
d. Bitumin 4. Boot polish

  1. a - 2, b - 3, c - 1, d - 4

  2. a - 2, b - 4, c - 1, d - 3

  3. a - 3, b - 4, c - 1, d - 2

  4. a - 4, b - 3, c - 2, d - 1

  5. a - 2, b - 3, c - 4, d - 1
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

 All options are correctly matched. LPG is used in the production of carbon black and gasoline is used as a solvent for dry cleaning. Parrafin wax is used for the manufacturing of boot polish and bitumin is used for manufacturing paints.

Multiple choice

Directions: In the following question, there is a statement followed by two conclusions. Statement: What is an RDX explosive? From the outside, it looks like a simple harmless object, but its real contents are so deadly that they are sufficient to blast off an entire compartment of a train or even a plane. Conclusion: I. The RDX explosive can cause massive destruction by killing a number of persons with a single explosion. II. The RDX explosive is only used to blast planes/trains as it is difficult to recognise in such settings.

  1. If only conclusion I follows.

  2. If only conclusion II follows.

  3. If conclusions I and II both follow.

  4. If neither I nor II follows.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Only the first conclusion can be drawn. It is clear from the statement that the RDX explosive can cause massive destruction and can kill a number of persons with one explosion. The second conclusion cannot be drawn since we have no indication to conclude that RDX is used only to blast planes or trains. Hence, Option (1) is correct.

Multiple choice

Which of the following statements is true about fossil fuels?

  1. They are being used at a very slow rate.

  2. They clean the environment.

  3. They take a very long time to form.

  4. They are inexhaustible.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(i)    Fossil fuels are used at a very fast rate. (ii)   Fossil fuels are the remains of plants and animals. They pollute the environment as they are not completely burnt. (iii)  Fossil fuels take a very long time to form as they are the remains of plants and animals which are deeply buried. Option (3) is correct.

Multiple choice

_________ is used as a fuel in automobiles.

  1. Liquefied Natural Gas (LNG)

  2. Compressed Natural Gas (CNG)

  3. Liquefied Petroleum Gas (LPG)

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

CNG is used as a fuel in automobiles. CNG is a cleaner fuel. LPG and LNG are also used as a fuel in automobiles, though not as commonly as CNG.

Multiple choice

Which of the following is not true?

  1. The substances which vapourise on burning gives flame.

  2. Camphor on burning gives no flame.

  3. Magnesium ribbon on burning gives a bright white flame.

  4. The luminous zone has unburnt carbon particles.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Camphor on burning produces flame. The color of flame is yellow.