Coal And Petroleum
Coal And Petroleum: Overview
This Topic covers sub-topics such as Biogas, Fossil Fuels, Types of Coal, Synthetic Fuels, Conservation of Fossil Fuels, Petrocrops and, Petroleum as a Fossil Fuel
Important Questions on Coal And Petroleum
Answer the following question based on the given information.
Hydrogen gas is an excellent fuel. It has a high calorific value and produces only water as the product of combustion. It is considered to be a potentially important, non-polluting energy source of the future.
Hydrogen is labelled with different 'colours' based on the method by which it is produced, as given below:
- green hydrogen: manufacturing process does not produce carbon dioxide
- blue hydrogen: manufacturing process produces carbon dioxide but it is separated and stored
- grey hydrogen: manufacturing process produces carbon dioxide which is released into the air
Electrolysis of water is another common way of producing hydrogen on an industrial scale.
Hydrogen produced by the electrolysis of water can be green hydrogen, but not always. Which of the following correctly explains why?

Which of these is a bad effect of burning fossil fuels?

What are types of fossil fuels?

Write a note on fossil fuels.

Pick the right combination of terms which has no fossil fuel –

Assertion (A): Fossil fuels have chemical energy stored in them.
Reason (R): Coal and petroleum are inexhaustible resources.

A depleting source of energy is

One of the uses of coal is in _____ power plants.

Which of the following is/are not a fossil fuel?

Which one of the following is not a renewable energy source?

Example for non-renewable resource is _____.

Write the full form of CNG.

Pick the right combination of terms which has no fossil fuel.



Which of these is a non-exhaustible resource?

Maximum petroleum is used in

Which form of coal is hardest and with maximum carbon content?

Biogas generation is mainly based on the principle of

Both power and manure are provided by
