The colors of aqueous solutions of CuSO4 and FeSO4 as observed in the laboratory are:
Cu is present in +2 oxidation state and iron is present in +3 oxidation state.
The Correct Answer is D
A student prepared an aqueous solution of CuSO4 in beaker X and an aqueous solution of FeSO4 in beaker Y. He then dropped some iron pieces in beaker X and some zinc pieces in beaker Y. After about 10 hours, he observed that the solution in X and Y respectively appear:
An unknown solution that produced a pale blue precipitate with sodium hydroxide solution, and a green-blue flame test, must contain a: