COAL AND PETROLEUM

What is Coal tar.

What is Coke.

Definition of Carbonisation.

Story of coal.

Description and types of coal.

Definition and example of fossil fuels.

Name the Constituents of petroleum.

What are Limited natural resources.

Inexhaustible Natural Resources.

Exhaustible natural resources.

Definition and properties of natural gas.

Refining of crude petroleum

What is Petroleum?

What is Coal gas?

What steps would you suggest for the judicious use of fossil fuels?

Coal reserves are said to be enough to last for another hundred
years. Do you think we need to worry in such case? Why or why
not?

Write some important uses of the various constituents of
petroleum.

Why petrol is exhaustible natural resource, whereas sunlight is
not? Explain.

Imagine that all the exhaustible natural resources are exhausted
by human activities. Do you think survival of living beings would
be possible.? If yes, why?, If not, why not?

While driving what are the tips we must follow to save petrol/
diesel/natural gas?

We read in newspapers that burning of fuels is a major cause of
global warming. Explain why.

We say fossil fuels will last only for a few hundred years. Comment.

Name the products obtained and their uses when coal is processed
in industry.

Fill in the blanks and complete the story.
About 300 million years ago the earth had dense ________ in low
lying wetland areas. Due to natural processes, like ______, these
forests got burried under the ________. As more ________ deposited
over them, they were compressed. The ________ also rose as they
sank deeper and deeper. Under high ________ and high ________,
dead plants got slowly converted into coal.

Write the characteristics and some important uses of coal.

Write two important uses of coke.

Some natural resources are given in a box. Classify them into
the exhaustible and inexhaustible natural resources.
air, coal, natural gas, sunlight, petroleum, minerals,
forests, oxygen.

Sunlight and air are inexhaustible natural resources. Comment

Write True/False against the following statements.
(a) Oxygen in air is an exhaustible natural resource.
(b) Resources which are present in unlimited quantity in nature
are called exhaustible natural resources.
(c) Wildlife is an exhaustible natural resource.
(d) Under high temperature and pressure, dead plants get slowly
converted to coal.
(e) CNG is less polluting fuel than petrol and diesel.

Fill in the blanks.
(a) The slow process of conversion of dead vegetation into coal is
called__________.
(b) Coal and petroleum are formed from the dead remains of
organisms and are known as __________.
(c) The black thick liquid with __________ smell is known as coal
tar.
(d) During the processing of coal to get coke, coal tar and
__________ are also obtained.
(e) The process of separating the various constituents of
petroleum is known as __________.
(f) Excessive burning of fossil fuels is a major cause of __________.

Fill in the blanks in the following sentences.
(a) Coal is one of the ________ used to cook food.
(b) When heated in air, coal burns and produces mainly ________
gas.
(c) Coal tar is a black, thick ________ with an ________ smell.
(d) Petroleum, ________ and ________ are fossil fuels.
(e) Forests and coal are ________ natural resources.

Name the petroleum product used as fuel for stoves, lamps and
jet aircrafts.

What does CNG stand for and why is it considered to be a better
fuel than petrol?

You are provided with a mixture of petroleum and water. Can
you suggest a method to separate the two?

Describe characteristics and uses of coke.

Explain the process of formation of petroleum.

The following Table shows the total power shortage in India from 1991 - 1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.

Describe characteristics and uses of coke.

Fill in the banks.
(a) Fossil fuels are ________, ________and _________.
(b) Process of separation of different constituents from petroleum is called _________.
(c) Least polluting fuel for vehicles is __________.

Describe how coal is formed from dead vegetation. What is this process called?

Name the petroleum product used for surfacing of roads.

What are the advantages of using CNG and LPG as fuels?