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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. Arrange the metals A B C and D in the order of decreasing reactivity.

Q.5.     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      Copper (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 question about metals
            A, B, C and D.

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

Answers (1)

best_answer

As stated in part (a), 

No metal is able to displace zinc from its solution; thus, zinc is most reactive of given metals.

Further, only metal B is able to displace iron from iron sulphate solution. And element A can displace copper. Similarly, element C can displace silver from its solution.

So the reactivity order obtained is :            D      <      C    <      A     <     B

Posted by

Devendra Khairwa

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