1.

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 on follows:   Metals Iron (II) sulphate  Copper sulphate (II) Zinc sulphateANo reactionDisplacementBDisplacementNo reactionCNo reactionNo reactionNo reactionCNo reactionNo reactionNo reactionI. What would you observe if B is added to a solution of copper (II) sulphate? II. Arrange the metals A, B, C, D in the order of decreasing reactivity.

Answer»

(i) If B is added to CuSO4 solution, then it will displace Cu because Fe is more reactive than Cu, so the metal which can displace Fe, can also displace Cu. 

(ii) B > A > C > D



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