Which of the following product is formed when sulphur dioxide gas is passed through sodium chlorate in a strongly acidic solution ?

Consider the following properties of noble gases.
$\mathrm{I}:$ They readily form compounds which are colourless.
$\mathrm{II}:$ They generally do not form ionic compounds.
$\mathrm{III}:$ Xenon has variable oxidation states in its compounds.

$\mathrm{IV}:$ The smaller $\mathrm{He}$ and $\mathrm{Ne}$ do not form clathrate compounds.
Select the correct properties.