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Ozone

Given the rea...

Question

Given the reactions of ozone with the following and give equations.
(i) $P b S$
(ii) $S n C l_{2} / H C l$
(iii) Moist $K I$
(iv) $B a O_{2}$

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Solution

Oxidation reactions of ozone:
(i) Lead sulphide (black) is oxidized to lead sulphate (white)
$P b S + 4 O_{3} \to P b S O_{4} + 4 O_{2}$
(ii) $S n C l_{2} / H C l$ is oxidized to $S n C l_{4}$
$3 S n C l_{2} + 6 H C l + O_{3} \to 3 S n C l_{4} + 3 H_{2} O$
(iii) Moist potassium iodide is oxidized to iodine.
$2 K I + H_{2} O + O_{3} \to 2 K O H + I_{2} + O_{2}$

(iv) $B a O_{2}$ is reduced to $B a O$
$B a O_{2} + O_{3} \to B a O + 2 O_{2}$

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