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The oxidation state of copper changes wh...

The oxidation state of copper changes when aqueous copper (II) ions react with:
(I)`NaOH(aq)` (II)`Fe(s)` (III)`KI(aq)`

A

0

B

`-1`

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
`overset(+2)(CuSO_4)+2KIhArrK_2SO_4+CuI_2`
`2CuI_2rarroverset(+1)(Cu_2I_2)+I_2`
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