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Question

Metallurgical coal used in the smelting of iron ore is


A

Anthracite

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B

Bituminous

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C

Lignite

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D

Peat

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Solution

The correct option is B

Bituminous


Explanation for correct option:

(B) Bituminous

  • The metals can be extracted by converting the ore into metallic oxide and by reducing it into free metal.
  • Smelting is the process used to extract many metals from their ore by heating ore to extract the base metals.
  • The smelting of iron is the process of heating ore to extract the metal iron.
  • It requires heat and a chemical reducing agent to decompose the ore.
  • Smelting takes place in the blast furnace to produce the iron pig.
  • Bituminous is a type of coal that is found in the sedimentary layer of soil.
  • Bituminous coal is harder and blacker and it contains more carbon and less moisture and ash than low-rank coal.
  • It is the Metallurgical coal used in the smelting of iron.
  • Hence, option (B) Bituminous is correct.

Explanation for incorrect options:

(A) Anthracite

  • Anthracite was used in blast furnaces for iron smelting.
  • It lacked the pore space of metallurgical coke so it is replaced by Bituminous.
  • Hence, option (A) Anthracite is incorrect.

(C) Lignite

  • Lignite is considered the lowest rank of coal due to its relatively low heat content.
  • Bituminous coal is harder and blacker and it contains more carbon and less moisture and ash than Lignite.
  • Hence, option (C) Lignite is incorrect.

(D) Peat

  • Peat is considered the lowest rank of coal due to its relatively low heat content.
  • Bituminous coal is harder and blacker and it contains more carbon and less moisture and ash than Peat.
  • Hence, option (D) Peat is incorrect.

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