Question

A pale yellow coloured non-metal (X) reacts with oxygen and produces a pungent smelling gas <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $X{O}_2$. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $X{O}_2$ reacts with water to produce the acid, $H_2$ $X{O}_3$ .Which of the following is true for the mentioned reaction? <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->

Answer 1

Sulphur is a pale yellow coloured non-metal. When sulphur reacts with oxygen, it produces sulphur dioxide which has a pungent smell.
Sulphur dioxide is a non-metal oxide and thus, is acidic in nature. It reacts with water to produce sulphurous acid.