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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.

         (i) Which is the most reactive metal?

Answers (1)

best_answer

From the table it can be seen that no metal is able to displace zinc from its solution thus zinc is most rection among given metals.

Futher, 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

Hence B is most reactive.

Posted by

Devendra Khairwa

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