Suppose the provided unknown Q was a solution of 6.732 M Fe2+ and a concentration cell was constructed with one half-cell containing the provided unknown Q solution and an iron electrode, and the other half-cell containing a diluted unknown Q solution (diluted using the procedure listed in Part A) and an iron electrode, as shown below.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck

B? i feel like this is a trick