1.

In which metal vessels aqueous CuSO_(4) solution can be store ? E_(Cu^(2+)//Cu)^(@)=0.34V E_(Fe//Fe^(2))^(@)=0.44V, E_(Al//Al^(3+))^(@)=1.66V E_(Ni//Ni^(2+))^(@)=0.25V,E_(Ag^(+)//Ag)^(@)=0.80V

Answer»

Ag
Ni
Fe
Al

Solution :`E_(Cu^(2+)|Cu)^(THETA)=0.34V`
`E_(Al|Al^(3+))^(Theta)=1.66V and E_(Al^(3+)|Al)^(Theta)=-1.66V`
So, in Al VESSELS, `Cu^(2+)` of `CuSO_(4)` is REACTED.
`2Al_((S))+3Cu^(2+) to 2Al^(3+)+3Cu_((S))`
So reaction of `CuSO_(4)` is occurred with Al vessels so `CuSO_(4)` solution can.t be STORE in Al.


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