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

Which of the following measures will deplete the petrol and diesel reserves?

  1. Driving at constant speed

  2. Switching off the engine while waiting

  3. Maintaining correct tyre pressure

  4. Ensuring regular maintainance

  5. Idling the engine at red lights
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This will keep the engine running and waste fuel unnecessarily. It will deplete our fuel resources and cause wastage of a limited resource.

Multiple choice

A thick black liquid is obtained when coal is burned in the presence of oxygen. It smells unpleasant and is a mixture of hundreds of substances. This thick liquid is called coal tar and it is used in the manufacture of

Coal tar is used in the manufacturing of which of the following: (a) perfumes (b) synthetic dyes (c) plastics (d) explosives (e) paints

  1. a, b, and d

  2. a, b, and c

  3. a, c, d, and e

  4. b, c, d, and e

  5. a, b, c, d, and e
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as perfumes, synthetic, dyes, plastics, explosives and paints all are manufactured with the presence of substances obtained from coal tar.

Multiple choice

The by-product of coal tar is used in industries in the manufacture of

  1. lubricants for machines

  2. Vaseline

  3. Boot polish

  4. Fertilisers

  5. Aviation fuel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fertiliser manufacturing industries use ammoniacal liquor, which is a by-product of coal tar, which is in turn is obtained during the destructive distillation of coal. All other products are manufactured with the use of petroleum constituents.

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.