Which of the following types of coal is known to have the highest carbon content in it?

Correct option is C

Sol: The correct answer is (c) Anthracite

Key Points:

• Anthracite: Known as the highest grade of coal due to its high carbon content (up to 95%) and few impurities, leading to a higher calorific value. It's hard, shiny, and burns cleanly with little smoke.

• Bituminous: Contains about 45-86% carbon. It's the most abundant coal type and is used primarily for electricity generation and steel production.

• Sub-bituminous: Has a lower carbon content than bituminous coal, usually between 35-45%. It's used mainly for electricity generation.

• Lignite: Often referred to as brown coal, has the lowest carbon content (25-35%). It is the softest type of coal and is primarily used for electricity generation.