Ozone reacts with neutral KI solution to yield

Options

A. `I_(2)`
B. `O_(2)`
C. `I_(2)` and `O_(2)`
D. `KOH, I_(2)` and `O_(2)`

Answer

D

Explanation

Due to its ease with which it can liberate nascent oxygen,it acts as an extermely powerful oxidizing agent,second only to `F_(2)` in oxidizing power and reacts much more readily than oxygen.
The potential equation is
`O_(3)rarrO_(2)+O`
It liberates iodine from neutral `Kl` solution:
`O_(3)rarrO_(2)+O`
`(2KI+H_(2)O+Orarr2KOH+I_(2))/(2KI+H_(2)O+Orarr2KOH+I_(2)+O_(2)`
It oxidies `HX` into `X_(2)[X is Cl,Br,or I]`
`O_(3)rarrO_(2)+O`
`(2HX+OrarrH_(2)O+X_(2))/(2HX+O_(3)rarrH_(2)O+X_(2)+O_(2))`
Acidified ferrous sulphate to ferric sulphate
`O_(3)rarrO_(2)+O`
`(2FeSO_(4)+H_(2)SO_(4)+OrarrFe_(2)(SO_(4))_(3)+H_(2)O)/(2FeSO_(4)+H_(2)SO_(4)+O_(3)rarrFe_(2)(SO_(4))_(3)+H_(2)O+O_(2))`
Oxidizes lead sulphide (black)to lead sulphate (white)
`O_(3)rarrO_(2)+Oxx4`
`(Pbs+4OrarrPbSO_(4))/(PbS+4O_(3)rarrPbSO_(4)+4O_(2))`
Similarly,`CuS,ZnS`, and `CdS` are oxidized to`CuSO_(4),ZnSO_(4)` and `CdSO_(4)` respectively.
Other example are
`underset("nitrite")(NaNO_(3))+O_(3)rarrunderset("nitrate")(NaNO_(3))+O_(2)`
`underset("Sulphite")(Na_(2)SO_(3))+O_(3)rarrunderset("Sulphate")(Na_(2)SO_(4))+O_(2)`
`underset("asernite")(Na_(3)AsO_(3))+O_(3)rarrunderset("arsenate")(Na_(3)AsO_(4))+O_(2)`
`underset("manganate")(2K_(2)MnO_(4))+H_(2)O+O_(3)rarrunderset("permanganate")(2KMnO_(4))+2KOH+O_(2)`
`underset("ferricyanide")(2K_(4)[Fe(CN)_(6)])+H_(2)O+O_(3)rarrunderset("ferricyanide")(2K_(3)[Fe(CN)_(6)])+2KOH+O_(2)`