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 chemistry synthetic fibres and plastics plastic and environment pollution due to plastics environmental impact: plastics

The _________ waste is being converted into fuel which has a high octane number. It is known as the green fuel.

  1. plastic

  2. bio-degradable

  3. non-biodegradable

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

Over the years, there have been various solutions proposed – diversion, burning, etc.; however, nothing to date has proven to be a truly effective or environmentally responsible solution to the burgeoning global landfill problem.


In fact, many existing solutions have been just the opposite: costly, energy inefficient or equally as harmful to the environment as the plastic itself. 

It's only now, converting plastic waste to fuel is a solution that is not only economically viable, but that is remarkably simple and "green" as well.


Option A is correct.

Multiple choice chemistry allotropy of carbon preparation, properties and uses of baking soda chemical from common salt compounds of carbon

 $NaHCO _3$ is used as fire extinguisher.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fire extinguisher contains sodium bicarbonate in water and sulphuric acid in a separate container inside it. When the fire extinguisher is released by pressing the knob on it, the sulphuric acid mixed with sodium bicarbonate solution producing a lot of carbon dioxide gas.

$2NaHCO _3 + H _2SO _4\rightarrow Na _2SO _4 + 2H _2O + 2CO _2$ 

Carbon dioxide gas is neither combustible nor helps in combustion. It is heavier than air and offs the supply of oxygen from air and hence removes the fire. So, sodium bicarbonate is used in fire extinguishers. So the given statement is true.

Hence option A is correct.

Multiple choice political science law and social justice justice effects of social inequalities and social justice now meeta knows

The Supreme Court, from 1998 onwards, insisted that every vehicle using diesel should switch to ________.

  1. CNG

  2. LPG

  3. Petroleum

  4. Coal
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
In 1998, the Supreme Court published a Directive that specified the date of April 2001 as deadline to replace or convert all busses, three-wheelers and taxis to CNG. In addition, the Directive specified that an infrastructure of 70 CNG refuelling stations had to be made available, and asked for financial incentives for the conversion of vehicle fleets.

In January 1998, the National Capital Region of Delhi set up a Commission to study, write and publish a report on the air pollution problem in Delhi. CSE was a member of this Commission. Hence, Option A is correct. The rest of the fossil fuels are not environment-friendly, hence, incorrect. 
Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

Which of the following is considered as superior quality of coal ?

  1. Bituminous coal

  2. Peat

  3. Lignite

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

Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen. 

It is of higher quality than lignite coal but of poorer quality than anthracite.

Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

Coal used in power plant is also known as -

  1. steam coal

  2. charcoal

  3. coke

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

Steam coal also known as thermal coal, is used in power stations to generate electricity. Coal is first milled to a fine powder, which increases the surface area and allows it to burn more quickly

Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

Pulverized coal is

  1. coal free from ash

  2. non-smoking coal

  3. coal which bums For long time

  4. coal broken into fine particles
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A Pulverized coal fired boiler is an industrial or utility boiler that generates thermal energy by burning pulverized coal (also known as powdered coal or coal dust since it is as fine as face powder in cosmetic makeup) that is blown into the firebox

Multiple choice

What makes the motor of most cars run?

  1. water

  2. gasoline

  3. potatoes

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

Most cars use an internal combustion engine that runs on gasoline. While electric cars exist, gasoline is the standard answer for most cars historically.

Multiple choice evs - i life is precious road safety and pollution pollution of natural resources air pollution and its effects

Aerosols having carbon and fluorine compounds are chiefly released by _______.

  1. Refineries

  2. Automobiles

  3. Industries

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

The propellants used for jet engine release the halogenated paraffin compounds called fluorocarbons and chlorofluorocarbons. Both of these compounds are the potent ozone-depleting substances. Refineries, automobiles and industries release the oxides of carbon, sulphur and nitrogen.

Hence, the correct answer is 'Jets'.