Exploring Diversity of Matter Using Separation Techniques Quiz

What is the purpose of separation techniques?

• To make products and provide services for a good quality of life and sustainable living

• To create mixtures with different substances

• To increase waste production

• To reduce the availability of resources

Which technique is generally used to separate an insoluble solid from a liquid in a solid-liquid mixture?

• Evaporation

• Filtration

• Distillation

• Magnetic attraction

What is the purpose of using magnetic attraction in industries?

• To recycle materials for sustainable living

• To remove harmful objects from food

• To obtain drinking water from seawater

• To separate magnetic materials from non-magnetic materials

Which technique is used to obtain a dissolve solid from a liquid?

• Magnetic attraction

• Filtration

• Distillation

• Evaporation

What is the main purpose of paper chromatography?

• To obtain a pure solvent from a solution

• To separate magnetic materials from non-magnetic materials

• To identify the contents of a mixture

• To remove dissolved salts from seawater

What is the technique used to remove dissolved salts from seawater?

• Distillation

• Evaporation

• Reverse osmosis

• Microfiltration

What is the final stage in obtaining drinking water from treated used water?

• Microfiltration

• Reverse osmosis

• Ultraviolet disinfection

• Distillation

What is the main purpose of desalination plants?

• To remove dissolved salts from seawater

• To recycle materials for sustainable living

• To identify the contents of a mixture

• To separate magnetic materials from non-magnetic materials

How can water be conserved?

• By increasing wastage

• By reusing water

• By using more water than needed

• By polluting water sources

What is the technique used to separate small amounts of substances with different solubilities in a solvent?

• Magnetic attraction

• Filtration

• Evaporation

• Paper chromatography