Here are four observations of the reactions of four metals Here are four observations of the reactions of four metals.

Metal F and G react slowly with water
Metal H displaces metal G from its chloride salt solution
Metal E does not react with dilute acids
Metal H does NOT displace metal F from its sulphate salt solution.

What is their order of reactivity, starting from the most reactive metal to the least reactive metal?

F>H>G>E;  H>G>F>E;  H>E>F>G;  G>H>F>E;  None of these

I'm really unsure how to order them     I would say F>H>G>E but thats half guessing.
Can someone give me a clue to arrange them right?
Before starting of with my reasoning , I must tell you that your answer ( whether guessed or logically reasoned ) looks correct according to me .

I am assuming that you are familiar with the Metal Reactivity Series ( if not look here )

We shall take use of a well presented reactivity series :

 

Now to crack the answer clue by clue :

1.


  Metal F and G react slowly with water.


Hence F and G are somewhere at the top.

2.


  Metal H displaces metal G from its chloride salt solution


Clearly H>G.

3.


  Metal E does not react with dilute acids 


E will come somewhere at the bottom half so F,G>E (from 1) and we can further say H>G>E (from 2)

4.


  Metal H does NOT displace metal F from its sulphate salt solution 


This gives F>H.

Combine last two clues' result to get F>H>G>E .