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Doctors Medicines MCQs Q&A

  1. 1 and 2 only
  2. 2 and 4 only
  3. 1, 2 and 4
  4. 1 and 3
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1 Answers

Option 1 : 1 and 2 only

The correct answer is 1 and 2 only.

  • There are four types of iron ores, viz. hematite, magnetite, limonite, and siderite.
  • India is endowed with fairly abundant resources of iron ore and has the largest reserve of iron ore in Asia.
  • The two main types of ore found in India are hematite and magnetite. Hence Option 1 is correct.
  • The iron ore mines occur in close proximity to the coal fields in the northeastern plateau region.
  • About 95% of the total reserves of iron ore are located in the States of Odisha, Jharkhand, Chhattisgarh, Karnataka, Goa, Telangana, Andhra Pradesh and Tamil Nadu.
  • Haematite
    • Reddish; best quality; 70 per cent metallic content.
    • Found in Dharwad and Cuddapah rock systems of peninsular India.
    • 80 per cent of haematite reserves are in Odisha, Jharkhand, Chhattisgarh and Andhra Pradesh.
    • In the western section, Karnataka, Maharashtra and Goa have this kind of ore.
  • Magnetite
    • Black ore; 60 to 70 per cent metallic content.
    • Dharwad and Cuddapah systems.
    • Have Magnetic quality.
    • Found in Karnataka, Andhra Pradesh, Rajasthan, Tamil Nadu and Kerala.
  • Limonite
    • Inferior ores; yellowish in colour; 40 to 60% iron metal.
    • Damuda series in Raniganj coal field, Garhwal in Uttarakhand, Mirzapur in Uttar Pradesh and Kangra valley of Himachal Pradesh.
  • Siderite
    • ‘Iron carbonate’; inferior quality; less than 40 per cent iron.
    • Contains many impurities, and mining is not economically variable.
    • However, it is self-fluxing due to the presence of lime.
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