Question

he following flow chart which gives the techniques a student adopted to separate the constituents of a mixture. What could the mixture be?


A.
Water + sand + glass

B.
Oxygen + hydrogen + salt

C.
Stones + rice + water

D.
Chalk powder + sugar + water

Answer 1

The mixture is d) Chalk powder + sugar + water

Explanation

The student tried separating the components through two process

• Filteration
• Distillation

Filteration

So, when the student filters the mixture, the suspended component got separated first e.g. chalk.

Distillation

• Now, when the mixture went through the distillation process, sugar and water got separated due to the difference in the boiling point of the two components.

• Since, distillation separates the components on the basis of their boiling points. The substance whose boiling point is low gets separated first.

• Water boils and evaporates at 100 degrees leaving behind sugar crystals.