Question

Strips of zinc, iron, magnesium and copper are taken in the test tubes A, B, C and D respectively. Same quantity of ferrous sulphate solution is added to these test tubes. In which test tubes chemical reaction will occur? Why? Write the chemical equations for the reactions taking place here.​

Answer 1

Answer:

reaction occurs in test tube A and C

Explanation:

according to reactivity series copper is less reactive than copper

Any metal cannot displace itself from its salt solution

Answer 2

Answer:

Aim:Observing the action of zinc, iron, copper and aluminium metals for the following salt solutions.Zinc sulphate (ZnSO4)Copper sulphate (CuSO4)Ferrous sulphate (FeSO4)Aluminium sulphate (Al2(SO4)3)Arranging the metals Zinc, Copper, Iron, and Aluminium in the decreasing order of reactivity based on the results obtained from the above.

Materials required:Aluminium foilZinc granulesCopper turningsIron filingsCopper sulphate solutionAluminium sulphate solutionZinc sulphate solutionFour 50ml beakersTest tubeTest tube stand

Theory:What is reactivity series?

Different metals have different reactivities with chemical reagents. The metals that form positive ions by losing electrons more readily. A more reactive metal displaces a less reactive metal from salt solution. Such reactions are called displacement reactions. Consider an example, if a small amount of zinc is dipped in copper sulphate solution, zinc is displaced from copper sulphate. The blue colour of copper sulphate fades and colourless zinc sulphate solution is obtained. Therefore, zinc is more reactive than copper.

Aluminium has the ability to displace