Which of the following statements about magnetite ore of iron is are correct 1 It is known as black ...........

Geography and Environment (NDA) World Physical Aspects

Download Solution PDF

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

Explanation:

All the options are correct. Hence D is the correct answer. Magnetite is also called as black ore. It contains 60% to 70% of pure iron.

Magnetite ore Magnetite ore possesses magentic properties.

Magnetite is a rock mineral and one of the main iron ores, with the chemical formula Fe3O4. It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. It is the most magnetic of all the naturally-occurring minerals on Earth.