1.

The following observations were made by a student on treating four metals P, Q, R and S with the given salt solutions:SampleMgSO4(aq)Zn(NO3)2(aq)CaSO4(aq)Na2SO4(aq)PNo reactionReaction occursReaction occursNo ReactionQReaction occursReaction occursReaction occursReaction occursRNo ReactionReaction occursNo ReactionNo ReactionSNo ReactionNo ReactionNo ReactionNo ReactionBased on the above observations: (a) Arrange the given samples in the increasing order of reactivity (b) Write the chemical formulae of products formed when Q reacts with CuSO4 solution.

Answer»

i. S>R>P>Q 

ii. Cu and QSO4



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