Q1 of 20 Page 146

Find out the answers to the following questions by visiting a warehouse for coal.

Which are the different kinds of coal?

The different kinds of coal present are:

i. Anthracite – It contains 80% of carbon.


ii. Bituminous coal – It contains 60% of carbon.


iii. Lignite – It contains 22% of carbon.


iv. Peat – It contains 11% of carbon.



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5

Give two uses of:

Methane

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Differentiate between:

The crystalline and non-crystalline or amorphous forms of carbon.

 6

Differentiate between:

Diamond and graphite.

 1

Find out the answers to the following questions by visiting a warehouse for coal.

For which purposes are the different kinds of coal used?