Metallic oxide of zinc,magnesium and copper were heated with the following metals:-

In which case will you find displacement reations taking place?

Which of the following metal does not form MO type oxide?

Describe how the following change are brought about zinc oxide into metallic Zinc.

Why Zinc oxide can be reduced to the metal by heating with Carbon andnot with Cr_2O_3 ?

Which separation tehcniques will you apply for the separation of the following? Small pieces of metal in the engine oil of a car.

Write the chemical reactions which take place in the following operations: Isolation of zinc from blend.

What would you observe when zinc is added to a solution of iron (II)sulphate?Write the chemical reation that takes place.

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.