Use the following information to answer the next question.
The nature of reactions of some metals with aluminium sulphate, copper sulphate, iron sulphate, and mercury nitrate are listed in the given table.
Metal
Nature of reaction
Aluminium sulphate
Copper sulphate
Iron sulphate
Mercury nitrate
W
No reaction
Displacement
No reaction
No reaction
X
Displacement
No reaction
No reaction
No reaction
Y
No reaction
No reaction
No reaction
Displacement
Z
No reaction
No reaction
No reaction
No reaction
tHE ABOVE IS A TABLE. MY QUESTION IS THAT, HOW IS IT POSSIBLE THAT, X THAT CAN DISPLACE ALUMINIUM FROM ALUMINIUM SULPHATE IS NOT ABLE TO DISPLACE MERCURY FROM MERCURY NITRATE? IF IT IS DISPLACING ALUMINIUM, THEN IT WOULD SURELY BE MORE REACTIVE THAN ALUMINIUM, THEN IT SHOULD ALSO DISPLACE MERCURY FROM ITS SALT SOLUTION, BUT IN THE TABLE, IT IS MENTIONED THAT, X WITH MERCURY NITRATE GIVES NO REACTION.
PLEASE EXPLAIN THIS TO ME.
THANK YOU.
| Metals | Aluminium sulphate | Copper sulphate | Iron sulphate | Mercury nitrate |
| W | displace ment | |||
| X | displacement | |||
| Y | displacement | |||
| Z |
Now according to reactivity series amongst given 4 metals Al is most reactive followed by Fe , Cu and Hg.
So Z is least reactive as it is not able to displace any of the metal from its solution.
Since Y is able to displace mercury from its solution then it is more reactive than Hg only.
X is able to displace Al so it should react with all other 3 solutions.
W is able to displace Cu so it should also displace Hg from its solution.
So to explain it kindly mention the question also asked with the table. Then only the correct explanations can be given.