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The iron ore that has the highest iron content (up to 70 %) and excellent magnetic properties is
A{'text': 'Magnetite', 'label': 'A'}
B{'text': 'Hematite', 'label': 'B'}
C{'text': 'Limonite', 'label': 'C'}
D{'text': 'Siderite', 'label': 'D'}
Answer & Solution
Correct answer: A. {'text': 'Magnetite', 'label': 'A'}
1. NCERT: "Magnetite is the finest iron ore with a very high content of iron up to 70 per cent."
2. It has excellent magnetic qualities, especially valuable in the electrical industry.
3. Hematite is the most important industrially by quantity but has 50-60 % iron content only.
4. Limonite and siderite are lower-grade iron ores.
_Source: NCERT Class 10 Social Science (Geography), Ch 5 "Minerals and Energy Resources", §5 Iron Ore_
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