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Question : Iron nails become ______ after being dipped in copper sulphate solution.

Option 1: bluish

Option 2: greenish

Option 3: greyish

Option 4: brownish


Team Careers360 20th Jan, 2024
Answer (1)
Team Careers360 24th Jan, 2024

Correct Answer: brownish


Solution : The correct option is brownish.

After being dipped in copper sulfate solution, iron nails turn brownish because the reaction creates iron compounds like iron(III) oxide (rust). Copper ions can be released into the solution and iron compounds can be formed as a result of the reaction between iron and copper sulfate, which can displace copper.

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