Separation of Substances

What is the process of separating grain from the harvested stalks called?

• Winnowing

• Threshing

• Sedimentation

• Filtration

Which method is used to separate a mixture of grains and husk?

• Sedimentation

• Filtration

• Winnowing

• Evaporation

What is the substance present in a lesser amount in a solution called?

• Solvent

• Solute

• Mixture

• Filtrate

Which separation method is used to separate immiscible liquids like petrol and water?

• Centrifugation

• Decantation

• Separating funnel

• Filtration

Which of the following is an example of a solid-liquid mixture?

• Tiny particles of clay suspended in water

• Soot and ash in air

• Aerated drinks

• Broken grains mixed with rice

In a factory, a mixture of iron filings and sawdust needs to be separated. Which method would be most efficient?

• Filtration

• Magnetic separation

• Handpicking

• Winnowing

A chef wants to quickly separate fine flour from coarse particles. Which method should they use?

• Filtration

• Decantation

• Sieving

• Centrifugation

During a camping trip, a group needs to purify muddy water. Which sequence of processes should they follow?

A laboratory technician needs to obtain pure salt from a saltwater solution. Which method should they use?

• Filtration

• Evaporation

• Distillation

• Decantation

Which method would be suitable for separating a mixture of oil and water in a kitchen setting?

• Handpicking

• Separating funnel

• Centrifugation

• Sieving