Question

5. Write two uses of non metals.​

Answer 1

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Uses of Non-metals -

• Oxygen - It is used for respiration.

• Carbon dioxide - It is used for photosynthesis.

• Graphite - It is used in wires because it is a good conductor of electricity.

• Nitrogen - It is used for making fertilizers and it is also used by plants.

• Phosphorus and sulfur - They are used in crackers.

• Chlorine - It is used in bleaching powder and purification of water.

• Iodine - It is used for creating medicines.

Properties of Non-metals -

• Non-metals are not malleable or ductile. They can't be beaten into sheets.

• Non-metals do not have lustre except diamond and graphite and iodine.

• Usually Non-metals have low boiling and melting points.

• Usually Non-metals are poor conductor of electricity and heat.

• Non-metals are brittle in nature.

Answer 2

Explanation:

•two uses of non metals.

1. Gold, Platinum and silver are used as jewelleries and ornaments.

2.Iron and steel are used for construction purpose.

•what are non meatals.

a nonmetal is a chemical element that

mostly lacks the characteristics of a metal.

Physically, a nonmetal tends to have a

relatively low melting point, boiling point,

and density.