Which of the following is a tough, porous and black substance obtained from coal?

Correct option is C

The correct answer is (C)   ​Coke

1. Coke is a tough, porous, and black material composed mostly of carbon.
2. It is created by heating coal in the absence of air, which removes volatile components, leaving a carbon-rich solid.
3. Uses: Coke is an important fuel in industries like steelmaking and is used as a reducing agent to remove impurities from iron ore.

Information booster:

Coal Tar

• Coal tar is a thick, black, and sticky liquid that forms during the distillation of coal.
• It contains various organic compounds, including polycyclic aromatic hydrocarbons (PAHs).
• Uses: Coal tar was historically used in medicines and dye production, but it is also recognized as a carcinogen.

Coal Gas

• Also known as town gas, coal gas is a flammable mixture produced by heating coal with air or steam.
• Composition: It primarily contains hydrogen, methane, and carbon monoxide, with traces of other gases.
• Unlike coke, coal gas is not solid, tough, or black but is valued as a fuel source.