Question

Which of the following are the different types of coal?

• A. Peat
• B. Lignite
• C. Bituminous
• D. Anthracite

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A Peat
B Lignite
C Bituminous
D Anthracite

Coal is a fossil fuel obtained from dead and decayed plant and animal matter under high temperature and pressure, over millions of years. Depending on different stages of its formation and their carbon content, the various types of coal are peat, lignite, bituminous and anthracite.

$\begin{array}{ccc}\text{Types of coal}& \text{Stage of formation}& \text{\% of Carbon}\\ \text{Peat}& \text{First stage (It is the partially decayed organing matter )}& \text{60}\\ \text{Lignite}& \text{Second stage (It is the soft sedimentary rock formed from peat)}& \text{60-70}\\ \text{Bituminous}& \text{Third stage (It forms tar)}& \text{70-80}\\ \text{Anthracite}& \text{Fourth stage (It is the purest form of coal)}& \text{92-98}\end{array}$