CuSO4 solution is treated separately with KCl and KI. In which case Cu2+ will be reduced to Cu+

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Q. Cu (III) sulphate solution is treated separately with KCl and KI. In which case, Cu

^{2 +}

be reduced to Cu

^{+}

Q. A solution of

C u (I I)

sulphate is reacted with

K C l

and

K I

. In which case will the

C u^{2 +}

be reduced to

C u^{+}

C u^{2 +}

ions will be reduced to

C u^{+}

ions by the addition of an aqueous solution of_________.

At what concentration of

{C u}^{2 +}

in a solution of

C u {S O}_{4}

will the electrode potential be zero at

25^{0} C

Given:

E^{0} (C u / {C u}^{2 +}) = - 0.34 V

250 ml of 1M $I_{2}$ is separately reacted with 0.5 M $C u_{2} S$ solution, 0.5 M CuS solution and 0.5 M $S_{2} O_{3}^{2 -}$ solution, causing production of $C u^{+ 2}$ and $S O_{4}^{2 -}$ in the first two and $S_{4} O_{6}^{2 -}$ in the last case along with iodide ions. Which of the following option(s) is/are correct assuming 100% completion of the reaction?

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