Question

Answer this two questions pls...

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pls don't answer wrong and spam answer .

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Answer 1

Answer:

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.

Answer 2

Explanation:

Ans-1) The nail is composed of iron. Iron will get rust easily in the presence of oxygen and water. The iron will lose electrons and convert into ferric hydroxide (rust) in the presence of oxygen and water (moisture).

Ans-2) 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.