Question

What happens when moist sulphur is treated with ozone?

Answer 1

Several non-metals like phosphorus, sulphur, iodine, etc., get oxidised into their oxoacids when reacted with ozone in the presence of water.

Moist sulphur is oxidised to sulphuric acid.

\[\ce{\phantom{............}O3 -> O2 + [O] \times 3}\]

\[\ce{\phantom{.......}S + 3[O] -> SO3}\]

\[\ce{\phantom{....}SO3 + H2O -> H2SO4}\]
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\[\ce{S + 3O3 + H2O -> H2SO4 + 3O2}\]