Question

Please answer it fast....​

Answer 1

Explanation:

a) The nail in the test tube 2 is not rusted because, in test tube 2, we take boiling water. So, all the dissolved oxygen is removed from the water and if the iron nail does not get a supply of oxygen then corrosion is not carried out. ... Hence corrosion process does not take place.

b) The nail in the test tube 1 is rusted highly because in the test tube 1, iron nail meets with all the requirements which are essential for the process of corrosion. That's Supply of oxygen is dissolved form, presence of water and material itself. ... So, it absorbs all the dissolved oxygen present in water.

c) The nail in the test tube 3 is not rusted because calcium chloride is one of the best absorbents. So, it absorbs all the dissolved oxygen present in water. Hence corrosion process does not take place.

Answer 2

Answer:

this process are good the test is very high level .......