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Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.

Metal

Iron (II) sulphate

Cooper (II) sulphate

Zinc sulphate

Silver nitrate

A.

No reaction

Displacement

   

B.

Displacement

 

No reaction

 

C.

No reaction

No reaction

No reaction

Displacement

D.

No reaction

No reaction

No reaction

No reaction


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) sulphate?
(iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.

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(i) B is most reactive metal.
(ii) B will displace copper from copper sulphate.
(iii) Arrangement of metals in the order of decreasing reactivity B>A>C>D.
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