Iron nails were dipped in a solution kept in a test tube. After half a – InterviewSolution

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1.	Iron nails were dipped in a solution kept in a test tube. After half an hour, it was observed that the colour of the solution has changed. This change of colour is due to the formation of :
Answer» Iron nails were dipped in a solution kept in a test tube. After half an hour, it was observed that the colour of the solution has changed. This change of colour is due to the formation of :

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