Extraction of Metal

Q.

Reactive metals do not occur in nature in free state.

1. True

2. False

Q.

In what form do elements occur in nature?

Q.

Which of the following can be used as a reducing agent in smelting?

1. Carbon

2. Coke

3. Carbon monoxide

4. All of the above

Q.

Identify the metal(s) that is/are not extracted from the ore by electrolysis.

1. Copper
2. Calcium
3. Potassium