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

In what ways are tradiotional cooking stoves a threat to the environment?

  1. they use large amounts of energy

  2. they burn fossil fuels

  3. they cause forest fires

  4. they create soot
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Traditional biomass stoves used in many developing regions release significant amounts of soot and black carbon, which contribute to indoor air pollution and climate change.

Multiple choice infrastructure in india infrastructure tertiary sector economics

_______energy consumption takes into account the direct and indirect consumption of fuels. 

  1. Secondary

  2. Primary

  3. Direct

  4. Both B and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Primary energy consumption alludes to the immediate use at the source of rough energy, that is, energy that has not been exposed to any change or change process. It is the direct use of the resources which results in transferring of new material of waste. 
Multiple choice

Which of the following is NOT a byproduct of crude oil?

  1. petrol

  2. metal ores

  3. diesel

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

Crude oil is a fossil fuel processed into products like petrol, diesel, and natural gas. Metal ores are geological mineral deposits and are not derived from crude oil.

Multiple choice

Why is America so rich in coal?

  1. peat had time to accumulate & get slowly compacted

  2. igneous rock had time to accumulate & get slowly compacted

  3. limestone had time to accumulate & get slowly compacted

  4. marine animals had time to accumulate & get slowly compacted
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coal is formed from the remains of ancient swamp plants. Peat is the precursor to coal, which accumulates in oxygen-poor environments and undergoes compaction over geological time.

Multiple choice

Which of the following does NOT contribute to the formation of fossil fuels?

  1. atmospheric currents

  2. sediment

  3. pressure

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

Fossil fuels are formed by the burial of organic matter under layers of sediment, which is then subjected to extreme heat and pressure over millions of years. Atmospheric currents are weather phenomena and do not contribute to underground geological formation.

Multiple choice

Fossil fuels formed from which of the following?

  1. buried volcanic ash

  2. decaying plants & animals

  3. underground salt water

  4. nitrogen trapped in Earth's crust
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fossil fuels are hydrocarbons formed from the remains of ancient plants and animals that were buried and subjected to geological heat and pressure.

Multiple choice

For Combustion or "the triangle of fire" we need...

  1. Oxygen, Fire and Wood

  2. Heat, Oxygen and Fuel

  3. Fire, Fuel and Air

  4. Heat, Fuel and Fire
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The fire triangle represents the three ingredients needed for combustion: fuel, an oxidizing agent (usually oxygen), and heat (to reach activation energy).

Multiple choice

Which of the following is not a fossil fuel?

  1. coal

  2. oil

  3. gas

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

Wood is a biofuel obtained from recently living trees, making it a renewable resource. Coal, oil, and natural gas are fossil fuels formed over millions of years from the remains of ancient plants and organisms.

Multiple choice

How is natural gas (NG) different from coal(C)?

  1. NG is a renewable resource; coal is a fossil fuel

  2. C is a form of petroleum; NG is emitted from volcanoes

  3. NG is a fossil fuel; C is a renewable resource

  4. NG is a form of petroleum; C is extracted from coal deposits
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both natural gas and coal are fossil fuels, but they differ in their physical state and origin. Natural gas is a gaseous hydrocarbon often grouped under petroleum resources, whereas coal is a solid carbon-rich rock extracted from underground coal deposits. The other options incorrectly classify either natural gas or coal as renewable resources.