Answer this two questions pls...
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A - Nails in test tube C will get rust because the ordinary water contains dissolved oxygen in it. Then the dissolved oxygen reacts with iron present in nails. Then the nails in test tube C will get rust.
B - In test tube P, iron nails do not rust because boiled water does not contain any oxygen. A thin layer of oil also prevents oxygen from reaching the water in the test tube. In test tube Q, iron nails do not rust because soda lime absorbs water vapours.
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