Question

Give reason aluminium is highly reactive metal,still it is used to make utensils for cooking.

Answer 1

Aluminum is especially used because of the following reasons:
-Its high reactivity leads to formation of aluminum oxide when it reacts with oxygen. The aluminum oxide prevents it from further corrosion as it acts as a protective layer. The reaction that takes place is as follows:

4Al + 3O2 -------> 2Al2O3

- Aluminum is also used because it is a good conductor of heat.
-Aluminum is also relatively cheap and that is why it is used widely in making utensils.

Answer 2

Aluminium metal with this protective layer is used for making cooking utensils. Aluminium is a good conductor of heat.Thats why it is extensively used for making cooking utensils. Aluminum will form a layer of protective oxide that prevents further reaction.