Question

Which among the following qualities of iron ore is best based upon iron content?

• A. Magnetite
• B. Hematite
• C. Limonite
• D. Siderite

Answer 1

The correct option is A

Magnetite

Answer: [A] Magnetite

Ores are the minerals from which metal is conveniently and profitably extracted. Haematite, Magnetite, Siderite, Iron pyrites are the ores of the metal Iron. Among all the ores of Ferrous (Iron) magnetite is the finest quality of iron ore.

Magnetite

• Magnetite is the finest ore among all the ores of Iron.
• Magnetite ore comprises of seventy per cent of iron.
• The magnetic properties in this ore are appreciable.
• Fe₃O₄ is the chemical formula of magnetite ore.
• Magnetite (Fe3O4) is reduced to Ferrous Oxide (FeO) and then later Iron is extracted from its oxide.

Iron ore belts

The major iron ore belts in India are listed below:

• Odisha-Jharkhand belt
• Durg-Bastar-Chandrapur belt in Chattisgarh
• Ballari-Chitradurga-Chikkamagaluru-Tumakuru belt in Karnataka
• Maharashtra-Goa belt