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Question

Arrange the following metals in the decreasing order of

reactivity: K, Na, Zn, Cu, Hg, Ag

A K > Na > Zn > Cu > Hg > Ag

B K > Na > Zn > Ag > Hg > Cu

C K > Na > Zn > Cu > Ag > Hg

D K > Na > Zn > Hg > Cu > Ag

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