Which of the following activities of separation is feasible in primary classroom ?
A. Evaporation
B. Winnowing
C. Magnetic separation
D. Fractional Distillation

Correct option is D

The correct answer is A, B and C.
The feasible activities of separation in primary classroom are:
A. Evaporation: This method involves separating a dissolved substance from a liquid by heating the liquid to its boiling point. For example, separating salt from saltwater can be demonstrated by boiling saltwater in a container and observing the salt crystals left behind.
B. Winnowing: This is a simple method of separating lighter and heavier components of a mixture by blowing air. For example, winnowing grains and chaff can be demonstrated using a tray and a fan.
C. Magnetic separation: This method involves using a magnet to separate magnetic materials from non-magnetic materials. For example, separating iron filings from sand can be demonstrated using a magnet.
D. Fractional distillation is a more complex process that is not typically feasible in a primary classroom setting. It requires specialized equipment and is not suitable for young children.