Question

aluminium easily combines with oxygen but still it can be used for making kitchen utensil

Answer 1

aluminium easily combines with oxygen but still it can be used for making kitchen utensil bcoz Al2O3 forms a protective layer on the utensils n hence increases the lifespan of the utensil.

HOPE IT HELPS!!

Answer 2

Explanation:

Even though aluminum can easily react with oxygen, it is used in making of kitchen utensil because when aluminum reacts with oxygen to form aluminum oxide. It forms a layer over surface of the surface of the metal.

$4 A l+3 O_{2} \rightarrow 2 A l_{2} O_{3}$

It will help to reduce the corrosion of aluminum metal. If any other metal used for making the utensils then it reacts with oxygen and forms their respective oxides. These oxides may cause harmfulness to us and change the chemical composition of utensils.