Q. Three experiments to study the process of rusting are given below. Observe the three test tubes and answer the following.
a) Why the nail in the test tube 2 is not rusted?
b) Why is the nail in test tube 1 is rusted highly?
c) Would the nail in test tube 3 get rusted?
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a)The nail in test tube 2 doesn't get rusted because it has boiled water in it and boiled water has no oxygen and also the layer of oil on the water surface blocks oxygen to enter the system.
b)The air in test tube 1 has oxygen content on it and as oxygen is main factor of rusting,so the nail gets highly rusted.
c)No,the nail in test tube 3 wouldn't get rusted as calcium chloride dries at the air in testtube.
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