Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
A. HussainMaster
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Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
The color of copper sulfate solution changes when an iron nail is dipped in it because the iron nail causes a chemical reaction to occur. Copper sulfate is a blue-colored compound, but when it reacts with iron, it forms a new compound called iron sulfide, which is brown in color.
The chemical reaction between copper sulfate and iron can be written as follows:
CuSO4 + Fe -> FeS + Cu
In this reaction, the copper sulfate (CuSO4) and iron (Fe) react to form iron sulfide (FeS) and copper (Cu). The iron sulfide produced is brown in color, which causes the blue-colored copper sulfate solution to change color.
It’s worth noting that the color change that occurs when an iron nail is dipped in copper sulfate solution is just one example of a chemical reaction. There are many other types of chemical reactions that can occur, and they are often characterized by changes in color, smell, or other physical properties. Understanding how chemical reactions work is an important part of chemistry and is essential for many areas of research and technology.