Does copper also get rusted? I have seen a greenish deposit on the surface of copper vessels.

How does the FeO impurity present in sulphide ore of copper is removed?

Why should curd and sour substance not be kept in brass and copper vessels?

A solution of CuSO_4 is electolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode?

Three electolytic cells A,B,C containing solutions of ZnSO_4 , AgNO_3 and CuSO_4 respectively are connected in series. A steady current of 1.5 amperes was passed throught them until 1.45 g of silver deposited at the cathode of cell B. How long did the current flow? What mass of copper and zinc were deposited?

Assume the thermal conductivity of copper is 4 times that of brass.Two rods of copper and brass having the same length and cross section are joined end to end.The free and end of copper is at 0°C and the free end of brass is at 100°C.Calculate the temperature of the junctionof thw two rods at equilibirum.

Though copper, silver and gold have completely filled set of d-orbitals yet they are considered as transition metals. Why?

Samples of four metals A,B,C and D were taken and added to the following solutions one by one.The results obtained have been tabulated as follows. Use the table above to answer the following questions about metals A,B,C and D. (i)Which is the most reactive metal? (ii)What would you observe if B is added to a solution of copper (II) sulpahate? (iii)Arrange the metals A,B,C and D in the order of decreasing reactivity.