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 evs how to save fuel fuels fuel and effects of burning fuel study of combustion

Greater the _____ value, better is the fuel.

  1. gold

  2. iodine

  3. calorific

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

Calorific value means the energy contained in a fuel or food, determined by measuring the heat produced by complete combustion of specific quantity, expressed as $J/kg$. 

Greater the calorific value, better is the fuel.

Multiple choice physics sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy production of electricity from solar energy biogas environmental use of microorganism microbes in waste treatment and biogas

Gobar gas is a:

  1. solid fuel

  2. liquid fuel

  3. primary fuel

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

Biogas is a type of secondary energy because biomass (primary energy) is used to produce biogas by anaerobic digestion into more efficient and higher value fuel.Biogas is also called gobargas as made by waste remains of plants and animals.

Multiple choice evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

Which of the following is the important natural resources for plants and animals?

  1. Coal

  2. Petrol

  3. Diesel

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

Soil, as we know an important abiotic component of our environment. It provides nutrition and water to grow crops. They hold the roots of the trees and are extremely necessary for the proper growth of plants and trees. In the absence of proper nutrients in the soil, the plants and trees show nutritional deficiencies and retarded growth.

Apart from this, animals depend on plants for their survival and so they are dependant on soil for providing habitat and proper development of plants that they consume.
Coal, petroleum and natural gas are important fossil fuels that also from non-renewable resources that are used for various reasons like running automobiles, house gas cylinders etc.

They are remnants of dead plants and animals over a long period of time. So, they are not related to the growth of plants and animals.


Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

Oil, coal and natural gas supply approximately ___________ % of the energy used in the United States

  1. 10

  2. 25

  3. 40

  4. 90
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fossil fuels (oil, coal, and natural gas) have historically provided the vast majority of the energy consumed in the United States, typically accounting for 80-90 percent of the total.

Multiple choice zoology bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

Chemical reactions triggered by ___________ transforms the organic material into hydrocarbons.

  1. solar energy

  2. hydroelectric

  3. elevated temperatures

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

The formation of hydrocarbons from organic matter (kerogen) in sedimentary rocks occurs through a process called catagenesis, which is driven by elevated temperatures and pressures over geological time.

Multiple choice chemistry chemical bond and chemical equation properties of covalent compounds types of bonds and properties covalent bond

Which of the following is used as lubricant ?

  1. Graphite

  2. Charcoal

  3. Diamond

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

Graphite is a mineral made of loosely bonded sheets of carbon atoms, giving it a slippery texture that makes it a very effective lubricant. This slippery quality also makes graphite a good material for pencil lead because it easily sloughs off onto paper.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources

Match the following.

(i) Oil reserve lasts for (a) $252$ years 
(ii) Gas reserves lasts for (b) $45$ years
(iii) Coal reserves lasts for (c) $72$ years

  1. i-b, ii-c, iii-a

  2. i-c, ii-b, iii-a

  3. i-a, ii-b, iii-c

  4. i-a, ii-c, iii-b
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Based on standard environmental science data often cited in textbooks: Oil reserves are estimated to last about 45 years, gas reserves about 72 years, and coal reserves about 252 years.

Multiple choice evs wonderful world of bholu aquatic habitat life inside water animal and habitat animals- nature's gift food material and source

Petrolatum is

  1. Animal wax

  2. Petroleum jelly

  3. Hard paraffin wax

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

Petrolatum is soft paraffin wax. Waxes are esters of fatty acids with alcohol of high molecular weight instead of glycerol. They form water-insoluble coatings on hair and skin in animals and stems, leaves and fruits of plants.

Paraffin wax is obtained from petroleum. So, petrolatum is also known as petroleum jelly. It is used in cosmetics.
So, the correct answer is 'Petroleum jelly'.

Multiple choice geography rocks and rock cycle rock cycle and uses of rocks rocks - introduction and importance lithosphere and asthenosphere

Fossil fuels are obtain from _____________.

  1. mineral ores

  2. rocks

  3. water

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Fossil fuels are obtained from sedimentary rocks and are formed under extreme temperature and pressure conditions.
  • When the fossil sediments get compressed into the rocks, with passing time there is the gradual decay of the fossils under extreme temperature and pressure which converts fossils into fossil fuels deep inside.
Multiple choice evs - i for a pollution free nature ways to prevent air pollution ways to reduce air pollution reducing air pollution

Which gas is emitted by the combustion of fossil fuels?

  1. $CO _2$
  2. $SO _2$
  3. $H _2S$
  4. $NO _2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide is the major gas along with smaller amounts of methane and nitrous oxide which are emitted by the combustion of fossil fuels such as coal, oil, and natural gas and contribute to the major green house gases.

So, the correct answer is option A.

Multiple choice chemistry combustion and flame structure of flame flame combustion

Burning of coal and wood causes  _____________.

  1. pollution of air

  2. decrease of non-renewable source of energy

  3. both (a) and (b)

  4. neither (a) or (b).
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Burning of coal and wood causes air pollution and because of burning of coal and wood there is decrease in amount of non-renewable sources.