Question

In a workshop, there is a mixture of iron powder and aluminum powder that fabricates metal door and gates. The worker has to separate the aluminum powder from the iron powder so that the powders can be utilized for other functions. What method should the worker use in order to separate the mixture?

• A. Magnetic separation
• B. Handpicking
• C. Threshing
• D. Sieving

Answer 1

The correct option is A

Magnetic separation

In the mixture of aluminum powder and iron powder, only iron is magnetic in nature. Hence, he can simply use a magnet to separate the components. On moving the magnet over the mixture, the iron powder will get attached to the magnet hence leaving behind the aluminum powder. This type of separation that uses a magnet is known as magnetic separation.