Question

Write the suitable methods to separate a mixture of a. Water, rice and salt b. Sand, water and iron filings c. Oil and water

Answer 1

Answer:

answer of a is evaporation and separation

answer of b is by magnetic iron filling is removed and filtration

Answer 2

Suitable methods to separate a mixture of :

1. Water, rice and salt :

• First rice is separated easily since it is not soluble in water. Then to separate salt and water we can evaporate water and the salt will crystallise.

2. Sand, water and iron filings :

• First we can evaporate the water by heating. Then sand and iron filings can be easily separated using magnetic separation as one of them is attracted by magnets and others not.

3. Oil and water :

• Oil and water can be separated using separating funnel since two are immiscible liquids.