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
1 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3