Write an experiment to prove that the presence of air and water are essential for corrosio n
Answers
Answer:experiment using nails
Water oil anhydrous calcium chloride
Explanation:
Take three test tubes
For our convenience let us name them asA B C
pour half test tube of water in first testing
And put few iron nails in it(make sure that nails are exposed to air
In second test tube pour boiled distilled water put nails in it n pour oil to prevent the exposure of air i.e oxygen(make sure that nails are not exposed to air )
In third test tube put few nails along with anhydrous calcium chloride(anhydrous calcium chloride absorbs moisture preventing the exposure of nails to moisture)
Now leave three test tubes namely ABC for few days
We will observe that nails will be corroded only in A die to the presence of moisture and oxygen
In test tube B only water is there due to absence of the presence of air nails will not be corroded
In test tube C nails are exposed to dry air and there is no moisture so the nails will not be corroded
So we conclude that presence of air and water are essential for corrosion