Question

1. Explain displacement reaction with the
help of an activity
2. Explain the reaction of non-metals with
oxygen with the help of an activity
3. Write the uses of metals and non-metals
4. Write the difference between metals and
non-metals on the basis of their physical
properties
5. Name two most ductile metals.
6. Sodium is stored in kerosene. Why?
7. What are oxides? Write the nature of
metallic and non-metallic oxides
8. Explain displacement reaction with the
help of an example,
9. Explain the reactions of metals and non-
metals with (1) Acids (1) Air (1) Water
10. Write the uses of metals and non-metals
In our daily life​

Answer 1

Answer:

Explanation: ans.1 Displacement reaction :

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with copper sulphate solution .

ANS.2 Reaction of non - metals with oxygen :

on-metals react with oxygen in the air to produce non-metal oxides. Here are two examples for the non-metals carbon and sulphur.

1. Carbon burns in air to form carbon dioxide:

carbon + oxygen → carbon dioxide

2. Sulphur burns in air to form sulphur dioxide:

sulphur + oxygen → sulphur dioxide

ANS.3 Uses of metals :

1. Metals are used to make utensils .

2. Metals are used to make jewelry for ex. gold and silver

3. Metals are used  to make tools .

Use of non - metals :

1. used to store acids .

2. used in chemistry to store chemicals

3. used to make polythene and other plastic things .

IT is too big to explain

please forgive me

Answer 2

Answer:

4 ans) *Metals are good conductors of heat and electricity

*Metals are lustrous.

*Metals are generally malleable and ductile.

Explanation:

*Non-metals are poor conductors of heat and electricity.(except graphite which is a good conductors of electricity).

*Non-metals are non-lustrous.

*Non metals are generally brittle and can break down into smaller pieces.

5Ans) The Two most ductile metals are Gold and platinum.

6Ans ) Sodium and Potassium are highly reactive metals and react vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive reaction, Sodium is kept immersed in kerosene because Sodium doesn't react with kerosene

7ans)