Revision test

Science and revision

by Dharitri Sahu

Multiple Choice

Which process of removing isoluble substance is shown?

• The picture dedicates sedimentation

• The picture dedicates evaporation

• The picture dedicates filtration

on Solubility

​Solubility means a solute dissolving in a liquid-

​Solids, liquids and gases can dissolve in liquids-

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​Solubility of solids- The solids dissolving in liquids break

​down into smaller particles. Examples are sugar and salt.

​Solubility of liquids- The liquids dissolving in a liquid fit in

​the small areas of a liquid. Examples are glycerin, milk,

​alcholol and vinegar.

​Solubility of gases- gases dissolve in water. They instantly mix with water or carbonate or aerate the solute to give its fizz taste. Examples are CO2.

​Water is a universal liquid as most of the solute dissolve in water.

Multiple Choice

If the liquid takes a lot of space, will it dissolve?

• Yes

• No

Multiple Choice

Which picture dedicates that something is NOT dissolving in liquids?

Multiple Choice

Hazzard has mixed sugar and water. Chainer has mixed oil and water. Jeru works in coco cola office. he carbonates to make soda. Whom do you think will fail in a proper solution?

• Hazzard

• Jeru

• Chainer

​Solids, liquids and gas

​Solids are rigid and do not leave any intermolucular space. They are close together, and are having fixed shape and size.

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Liquids are loosely packed and do not have a fixed shape. They are not rigid and take any shape of a contanier.

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​Gases are more loosely packed and have freedom to go anywhere.

Multiple Choice

Chocolate has a pen, a glass of milk, and a blown balloon. Which do you think has rigid diagram?

• pen

• milk

• balloon

• chocolate itself is not rigid.