Question

Give reasons for the following.
(a) Aluminium foils are used to wrap food items.
(b) Immersion rods for heating liquids are made up of metallic substances.
(c) Copper cannot displace zinc from its salt solution.
(d) Sodium and potassium are stored in kerosene.
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Answer 1

1.Aluminium Don't let Food Oxidise or rancid

2.Metal is good conductor of heat.

3.Because Copper is leass reactive.

4.When we store these in Air then they react with oxygen and burn explosive.

Answer 2

Answer:

Explanation:

1.Aluminium Don't let Food Oxidise or rancid

2.Metal is good conductor of heat.

3.Because Copper is leass reactive.

4.When we store these in Air then they react with oxygen and burn explosive.