Copper sulphate solution is stored in an iron container. after some days holes were seen in the container. write the reaction explain the reaction.

Can we store copper sulphate solution in an iron vessel ?

Say True or false Copper sulphate solution can be stored in iron pot.

A thin zinc plate was kept ina glass container having CuSO_4 solution. On examining it was found that the blue colour of the solution is getting lighter. After a few days when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and write chemical equation of the reaction.

If a copper plate reamins immeresed in silver nitrate solution for some time then what happens? write the ionic equation for the reaction

• Take three iron nails and clean them by rubbing with sand paper. • Take two test tubes marked as (A) and (B). In each test | tube, take about 10 ml copper sulphate solution. • Tie two iron nails with a thread and immerse them 'carefully in the copper sulphate solution in test tube B for about 20 minutes [Fig. (a)]. Keep one iron nail aside for comparison. • After 20 minutes, take out the iron nails from the copper sulphate solution. • Compare the intensity of the blue colour of copper sulphate solutions in test tubes (A) and (B) (Fig. (b)]. Also, compare the colour of the iron nails dipped in the copper sulphate solution with the one kept aside [Fig. - (b)]. On the basis of activity , give the answers of th following questions : What is the colour of copper sulphat solution in test tube A ?

Solid calcium oxide was taken in a container and water was added slowly to it. Write the balanced chemical equation of this reaction.

A solution of CuSO_4 was kept in an iron pot. After a few days the iron pot was found to have a number of holes in it. Explain the reasons in terms of reactivity. Write the equations of the reaction involved.

A chemistry lab-incharge kept zinc metal in FeSO_4 solution and observed that after sometime, green ferrous sulphate soluton turns to colourless and some brown powder is depostied on zinc. In the above reaction, zinc metal acts as