What is the reaction between iron metal and copper (ii) which species is dispalced g

Displacement and redox reaction

Copper is displaced

Explanation:

Iron metal can react with a solution of a salt containing the copper (II) cation, for instance, copper (II) sulfate. This is a displacement reaction.

Fe(s) + CuSO₄(aq) → FeSO₄(aq) + Cu(s)

Fe is incorporated into the salt, forming iron (II) sulfate and Cu is displaced. This reaction can also be considered a redox reaction because iron is oxidized and copper is reduced.

it's all four options.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.