Which of the following statements about magnetite ore of iron is/are correct 1. It is known as Black ore. 2. It contains 60% to 70% of pure iron. 3. It possesses magnetic properties. Select the correct answer using the codes given below:?

1 only
2 and 3 only
1 and 3 only
1, 2 and 3

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : 1, 2 and 3

The correct answer 1, 2, and 3.

Magnetite, also called lodestone, or magnetic iron ore, iron oxide mineral (Fe₃O₄) that is also known as Black Ore.
Magnetite is the finest iron ore with a very high content of iron up to 70 per cent.
It has excellent magnetic qualities, especially valuable in the electrical industry.
- Hence, all the statements are correct.

Hematite ore is the most important industrial iron ore in terms of the quantity used, but has a slightly lower iron content than magnetite. (50-60 per cent).
Iron is responsible for the red color in many of our rocks and the deep red sands of the Australian deserts and is a key ingredient in steelmaking.
Important ores of iron are:
- Magnetite.
- Hematite
- Siderite.
- Limonite.

4 views Answered 2022-09-04 04:29

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