Why the nail in the test tube 2 is not rusted this is of experidentity of process of rusting experiments
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because it is kept in a jar that is coated with oil so that oxygen present in air can't effect nahi with rust
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The test tube 2 is not rusted in the experiment of rusting due to the oxidization on the iron nail.
\This will prevent the reaction of iron to oxygen which will result in the rusting of the iron nail.
The metal will turn to the brownish colour rust when exposed to air directly.
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