A visible change is observed when a strip of iron is placed in an aqueous solution of

Assessment: WAEC SSCE - Chemistry - 2002 (Objective) Subject: Chemistry

Question 1 Report

A visible change is observed when a strip of iron is placed in an aqueous solution of
Answer Details
When a strip of iron is placed in an aqueous solution of copper sulfate (CuSO4), a visible change is observed. The iron strip reacts with the copper ions in the solution and displaces them, forming iron sulfate (FeSO4) and copper metal. This reaction is known as a single displacement or replacement reaction. The copper metal formed will appear as a reddish-brown solid on the iron strip, causing a visible change.
Read lesson note on Oxidation And Reduction (JAMB)
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