Question

The statements regarding ozone
i) lt oxidises $C{l}_2$ to $HCl$
ii) lt oxidises $PbS$ to ${PbSO}_4$
iii) It oxidises $K_4\left[Fe\right(CN{)}_6]$ to $K_3\left[Fe\right(CN{)}_6]$
The correct combination is:

• A. AII are correct
• B. (ii) and (iii) are correct
• C. Only (ii) is correct
• D. Only (iii) is correct

Answer 1

Answer: (B)

(ii) and (iii) are correct

$HCl⟶C{l}_2$
$HCl$ is being oxidised. Thus (i) is false.
Ozone acts as oxidising agent
$O_3⟶O_2+\left[O\right]$
Thus it oxidises $PbS$ to $PbS{O}_4$
& $K_4\left[Fe\right(CN{)}_6]$ to $K_3\left[Fe\right(CN{)}_6]$