Question

$$\begin{gathered} 3.Whattypeofchangetakesplacewhenareactionoccursbetweenironandcoppersulphatesolution? \\ \left(a\right)Physicalchange\left(b\right)Chemicalchange \\ \left(c\right)Bothphysicalandchemicalchange\left(d\right)Nochange \\ 4.Thecolourofthelayerdepositedonironnailsdippedincoppersulphatesolutionis: \\ \left(a\right)green\left(b\right)reddishbrown \\ \left(c\right)greenishblue\left(d\right)colourless \\ 5.Thelayerdepositedonironnailsdippedincoppersulphatesolutionisdueto: \\ \left(a\right)iron \\ \left(b\right)copper \\ \left(c\right)sulphur \\ \left(d\right)oxygen \end{gathered}$$

Answer 1

Dear Student,


3. Chemical changes takes place when a reaction occurs between iron and copper sulphate solution.
4. The colour of the layer deposited on iron nails in copper sulphate solution is: green
5. The layer deposited in iron nails dipped in copper sulphate is due to: iron


Regards