The molten iron that is obtained by the process of ore reduction is known as …………… .

1. Cast iron
2. Wrought iron
3. Pig iron
4. Steel

Assertion (A): Rourkela Steel Plant produces raw material used in the manufacture of fertilizers.

Reason (R): It produces a large quantity of nitrogen as a by-product.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Which of the following are the integrated Iron and Steel plants where SAIL produces Iron?

1. Bhilai and Durgapur
2. Salem and Bhadravati
3. Visakhapatnam and Vijayanagar
4. None of the above.

Assertion (A): The Government of India is promoting and planning to set up more mini steel plants.

Reason (R): These plants are non-polluting.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.