A student placed a clean iron nail in blue coloured copper sulphate so – InterviewSolution

1.	A student placed a clean iron nail in blue coloured copper sulphate solution for a considerable time. He observes that :(1) iron nail gets green coating(2) iron nail gets brown coating(3) iron nail gets no coating(4) iron nail gets blue coating
Answer» A student placed a clean iron nail in blue coloured copper sulphate solution for a considerable time. He observes that : (1) iron nail gets green coating (2) iron nail gets brown coating (3) iron nail gets no coating (4) iron nail gets blue coating

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