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 evs how to save fuel lpg, cng treasures from the earth fuel and conservation

Hydrogen gas is obtained from:

  1. petroleum

  2. coal

  3. coke

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

Fossil fuels are the dominant source of industrial hydrogen. Carbon dioxide can be separated from natural gas with a 60-70% efficiency for hydrogen production and from other hydrocarbons to varying degrees of efficiency.Specifically, bulk hydrogen is usually produced by the steam reforming of methane or natural gas.

Multiple choice evs substances in daily use can all changes be reversed? substances and objects changes around us

Coal is _________ fuel.

  1. fossil

  2. natural

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coal is a fossil fuel. Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. 

Multiple choice evs substances in daily use can all changes be reversed? substances and objects changes around us

Petroleum products are used for :

  1. fuel purpose

  2. making creams and ointments
  3. both $A$ and $B$

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Petroleum products such as petrol, diesel, kerosene and petroleum gas are used as fuel as they have high calorific value. 


Petroleum products are also used as raw material for cosmetics industries.

Hence the option C is correct.

Multiple choice history a road to history taj mahal: a case study air and water pollution control air and water pollution

The Supreme Court ordered:

  1. industries to switch to cleaner fuels like CNG (Compressed Natural Gas) and LPG (Liquefied Petroleum Gas)

  2. the automobiles should switch over to unleaded petrol in the Taj zone

  3. both A and B

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Supreme Court ordered industries to switch to cleaner fuels like CNG (Compressed Natural Gas) and LPG (Liquefied Petroleum Gas). Moreover, the automobiles should switch over to unleaded petrol in the Taj zone.

Multiple choice transgenic organisms biotechnology and its applications biotechnology and its application biology

Which one of the following sets of plant show/have shown promise as potential hydrocarbon(petroleum) sources?

  1. Simmondsia chinensis, Euphorhia ahvssinica, E. Teracalli

  2. Hardwockia pinnate, Capaifera longsorfii, Euphorbia esinifera

  3. Capaifera multijuga, Euphrobia lathyrus, caloropis procera

  4. Sesamum indicum, Linum usitatissimum, Arachis hypogea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Simmondsia chinensis (jojoba), Euphorbia abyssinica, and Euphorbia terracalla have shown promise as potential hydrocarbon or petroleum-like sources. Jojoba produces liquid wax esters similar to sperm whale oil, while certain Euphorbia species produce latex containing hydrocarbon-like compounds. Options B and C contain misspelled or incorrect plant names. Option D lists conventional oilseed plants (sesame, linseed/flax, peanut) that produce edible oils, not petroleum-like hydrocarbons.

Multiple choice chemistry organic nitrogen compounds nitroarenes- preparation and properties nitro compounds types of organic reactions

Nitro benzene is used _________.

  1. as a solvent

  2. In the manufacture of aniline

  3. In cheap scent

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

It is a solvent because it can dissolve a large number of polar substances (polar aprotic solvent)
It can be used to manufacture aniline because it can be reduced by stephen's reduction to anniline
It is also used as a scent because it has pleasant odour

Multiple choice chemistry occurrence of carbon compounds in nature importance of carbon covalent bonding in carbon compounds carbon and its forms

Using the given hints, identify the option with correct coal product and its use.
(1)$\;\;$Almost pure form of carbon.

  1. Coke, manufacture of steel

  2. Coal tar, manufacture of paints

  3. Coke, manufacture of plastics

  4. Coal tar, extraction of metals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coke has few impurities and high carbon content. Coke is used as a fuel and as reducing agent in smelting iron ore in blast furnace for production of steel. The bulk specific gravity of coke is around 0.77 and is highly porous.

Multiple choice chemistry chemical reactions of organic compounds combustion and thermal cracking of hydrocarbons chemical properties of carbon compounds chemical properties of organic compounds

When most fuels burn, the products include carbon dioxide and X. What is X?

  1. Hydrocarbons

  2. Hydrogen

  3. Water

  4. Hydroxide

  5. Hydrogen peroxide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When most fuels burn, the products include carbon dioxide and water.
Fuels are hydrocarbons. Combustion of hydrocarbons releases carbon dioxide and water.
$\displaystyle  CH _4 + 2O _2 \rightarrow CO _2 + 2H _2O$

Multiple choice chemistry chemical reactions of organic compounds combustion and thermal cracking of hydrocarbons chemical properties of carbon compounds chemical properties of organic compounds

Petrol engine gives off gaseous oxides of :

  1. sulphur

  2. phosphorus

  3. carbon

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

Petrol engine gives off gaseous oxides of nitrogen.
During combustion of fuel at high temperature, nitrogen and oxygen of air combine to form $NO$ and $\displaystyle NO _2$ and are released with the exhaust gas.

Multiple choice chemistry chemical reactions of organic compounds combustion and thermal cracking of hydrocarbons chemical properties of carbon compounds chemical properties of organic compounds

Use of petrol and diseal as fuel in automobiles are now replaced by :

  1. LPG

  2. CNG

  3. butimen

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

Use of petrol and diseal as fuel in automobiles are now replaced by CNG.
CNG is compressed natural gas (methane stored at high pressure).
Combustion of CNG results in fewer unwanted gases than petrol and diseal.
Also CNG is safer than petrol and diseal as CNG is lighter than air and disperses quickly when released.