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 separation of components of mixtures methods of separation elements, compounds and mixtures chemistry

Due to difference in degree of adsorption of gases by charcoal, a mixture of noble gases can be separated by adsorption on:

  1. burnt charcoal

  2. coconut charcoal

  3. powdered charcoal

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

Due to difference in degree of adsorption of gases by charcoal, a mixture of noble gases can be separated by adsorption double walled tube containing coconut charcoal.

Multiple choice physics sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy substances, objects and energy

Fill in the blank space by choosing the correct word. 
Coal and petroleum are commonly called .................... fuels.

  1. $renewable$
  2. $biomass$
  3. $fossil$
  4. $tidal$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coal and petroleum are commonly called fossil fuels.
Fuels such as coal, oil and natural gas were formed over millions of years from organic matter like plankton, plants and other life forms. Over time, sand, sediment and rock buried the organic matter and it eventually formed large quantities of fuels. These underground resources, known as fossil fuels, are still the primary fuel source for electricity, heating and powering vehicles around the globe.
There are three major forms of fossil fuels: coal, oil and natural gas. All three were formed many hundreds of millions of years ago hence the name fossil fuels. The age they were formed is called the Carboniferous Period. It was part of the Paleozoic Era. "Carboniferous" gets its name from carbon, the basic element in coal and other fossil fuels.

Multiple choice evs solar energy renewable and non-renewable resources renewable and non-renewable sources of energy substances, objects and energy solar power plant production of electricity from solar energy solar energy and its applications

Coal and petroleum are called fossil fuels.      

  1. True

  2. False

  3. Ambiguous

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

Answer is A.

It is because they are actually fossils. They are made of dead and decay matter buried under the earth for many years. The dead and decaying matter under great amount of pressure and temperatures turn into fossils and they both are used as fuels so it is called fossil fuels.
The fossil fuels we use today are actually formed from plants and animals that existed hundreds of millions of years ago. The reason there is a lot of concern surrounding the expenditure of these resources is because most of what we use today from fossil fuels, such as oil and coal are being depleted much faster than they can be formed, so there is a limited amount available.
Hence, the statement is true.

Multiple choice evs solar energy renewable and non-renewable resources renewable and non-renewable sources of energy substances, objects and energy solar power plant production of electricity from solar energy solar energy and its applications

The fossil fuels include:

  1. Uranium

  2. Soil

  3. Natural gas

  4. Plants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fossil fuels are formed when plants and marine species are buried below ground and are subjected to immense pressure and temperature for thousands of years. Examples include coal, petroleum and natural gas.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

Which of the following substances is smokeless?

  1. Charcoal

  2. Biogas and LPG

  3. Coke

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

Fuels that burns without smoke are also termed as smokeless fuels. Smokeless fuels include charcoal, liquid petroleum, biogas, coke and anthracite.

Multiple choice evs - i renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications substances objects and energy substances, objects and energy renewable resources alternative fuels and energy sources alternative sources of energy

If you could use any source of energy for heating your food, which one would you use?

  1. Methane gas

  2. Natural gas

  3. Petrol

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Out of the given energy sources, methane gas and petroleum are too highly combustible fuels to be used for domestic purposes. Natural gas is safer than the other two fuels and is less hazardous too.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

The fuels that cannot be replenished, once they are used are called _______ .

  1. renewable sources

  2. non-renewable sources

  3. ultimate sources

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

Non-renewable sources of energy are those that exist in finite amounts and cannot be replenished on a human timescale once consumed.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

A good fuel should :

  1. be safe to store and transport

  2. be able to provide desired quantity of energy at a steady rate over a long period of time

  3. have low content of non-combustibles and no combustion products that are poisonous or environmental pollutants

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

A good fuel should be safe, provide steady energy, and be environmentally friendly. All listed criteria are standard requirements for a good fuel.

Multiple choice biology biogeochemical cycles carbon cycling mineral coal carbon cycle

Which one of the following statements regarding CO gas is correct ?

  1. It is produced by the complete combustion of fossil fuels.

  2. It combines with haemoglobin to form carbamino-haemoglobin.

  3. It impairs oxygen transport resulting in giddiness, headache, asphyxia and even death.

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbon monoxide ( CO ) is produced due to incomplete combustion of fossil fuels, metallurgical operations, automobile emission, cigarette smoking. CO combines with haemoglobin, produces carboxyhaemoglobin which impairs oxygen transport resulting in headache, decreased vision, cardiovascular disease, asphyxia.

Multiple choice biology biogeochemical cycles carbon cycling mineral coal carbon cycle

Burning of fossil fuels affects

  1. Nitrogen cycle

  2. Carbon cycle

  3. Phosphorus cycle

  4. Water cycle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Carbon dioxide is being added to the atmosphere through two types of processes,
(A) Biological i.e respiration and decomposition release carbon dioxide.
(B) Non biological i.e burning of biomass and fossil fuel release a lot of carbon dioxide. Thus burning of fossil fuels affect carbon cycle of nature
So, the correct answer is 'Carbon cycle'
Multiple choice biology coal, petroleum and petrochemicals carbon cycling mineral coal carbon cycle

The variety of coal having highest carbon content is:

  1. peat

  2. anthracite

  3. bituminous

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

Anthracite is a hard compact variety of coal that has a high lustre. it has the highest carbon content, fewest impurities and the highest calorific content of all types of coal which also include bituminous coal and lignite.