Question

12. Another student used displacement reactions to investigate the relative reactivity of the four metals, W, X, Y and Z.
The table below shows the student’s results.






(a) Give the order of reactivity of metals, W, X, Y and Z. Use the results in the table above to justify your answer. (3)





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Answer 1

first case:-metal w is only atom who don't displaced only Mg , so w is more reactive than other .

second case :- metal z is don't displaced anyone so it is least reactive .

But in case of metal Y completely

react with sulfuric aacid but metal X is few amount react with sulfuric acid so few drops fomed .so Y is more reactive than X .

Hence arrangements of increasing reactivity :- W > Y > X > Z .