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 chemistry non-metals dihydrogen fuel dihydrogen as a fuel introduction to hydrogen

$H _2$ is best alternative to fossil fuels but use of hydrogen as a fuel is dangerous because:

  1. it is chemically unstable.
  2. the storage of $H _2$ is very risky and can causes explosion.

  3. it is very expensive.

  4. it causes the corrosion of containers in which it is present
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

$H _2$ is best alternative to fossil fuels but use of hydrogen as a fuel is dangerous because the storage of $H _2$ is very risky and causes explosion because of low ignition energy.

Multiple choice allotropes of carbon chemistry occurrence of carbon compounds in nature polymers

$C _{12}H _{22}O _{11}\xrightarrow{Conc.   H _2SO _4} 12C+11H _2O$
Which of the following is obtained by the above reaction?

  1. Animal charcoal

  2. Sugar charcoal

  3. Coke

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

Conc. $H _{2}SO _{4}$ is dehydrating agent. It dehydrates cane sugar to sugar charcoal.

           $C _{12}H _{22}O _{11}\,\,\,\xrightarrow{conc.H _2SO _4}\underset{sugar\ charcoal}{12C}+11H _{2}O$

Multiple choice allotropes of carbon chemistry occurrence of carbon compounds in nature polymers

When superheated steam is passed through white-hot wood charcoal, it gets reduced to a mixture of X and Y and it is named as Z. Identify the mixture Z.

  1. Producer gas

  2. Water gas

  3. Coal gas

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

$C\xrightarrow{supre\ heated\ H _2O}CO+H _{2}$


When Superheated steam is passed through white-hot wood charcoal it gets reduced to $CO $ and $H _{2}$. 

This mixture is called $water\ gas$.