Types of Coal

Q.

Name the four main types of coal.

Q. Which of the following is used in making paints?

1. Bitumen
2. Petrol
3. Diesel
4. Kerosene

Q. The below mentioned four main varieties of coal can be graded from superior to inferior as:

1. Lignite, anthracite, bituminous, peat
2. Peat, bituminous, lignite, anthracite.
3. Bituminous, peat, lignite, anthracite.
4. Anthracite, bituminous, lignite, peat.

Q. Arrange the following in the asending order with respect to the percentage of carbon present.
$\begin{array}{cc}A& Lignite\\ B& Anthracite\\ C& Peat\\ D& Bituminous\end{array}$

1. D > A > B > C
2. D > A > C > B
3. B > D > A > C
4. B > D > A > C