Sulphur Dioxide: Preparation, Structure, Properties and Uses

How does sulphur dioxide react with chlorine water ?

Write any two uses of sulphur dioxide.

What happens when sulphur dioxide is passed through water and reacts with sodium hydroxide? Write balanced equation.

How is sulphur dioxide prepared in industrially?

How is sulphur dioxide prepared in laboratory?

On passing ${\mathrm{H}}_2 \mathrm{S}$ through an aqueous solution of ${\mathrm{SO}}_2$, a yellow turbidity is formed. Why?

What happens when sulphur dioxide is passed through and aqueous solution of sodium carbonate?

What happens when:

Complete the equation: ${\mathrm{Fe}}^{3+}+{\mathrm{SO}}_2+{\mathrm{H}}_2\mathrm{O}⟶$.

What happens when sulphur dioxide is passed through an aqueous solution of $\mathrm{Fe} \left(\mathrm{III}\right)$ salt ?

Complete the following chemical equation:

${\mathrm{Fe}}^{3+}+{\mathrm{SO}}_2+{\mathrm{H}}_2\mathrm{O}\stackrel{ }{\to }$

${\mathrm{SO}}_2$ can act as an oxidising agent as well as a reducing agent, but ${\mathrm{SO}}_3$ an act only as an oxidising agent. Explain,why?

Compare the structures of the following compounds:

${\mathrm{SO}}_2$ and ${\mathrm{SiO}}_2$

Complete the following reaction's equation:

${\mathrm{NaClO}}_3\left(\mathrm{aq}\right)+{\mathrm{SO}}_2\left(\mathrm{g}\right)\stackrel{ }{\to }$

An element '$\mathrm{A}$' exists as a yellow solid in standard state. It forms a volatile hydride '$\mathrm{B}$' which is a foul smelling gas and is extensively used in qualitative analysis of salts. When treated with oxygen, '$\mathrm{B}$' forms an oxide '$\mathrm{C}$' which is a colourless, pungent smelling gas. This gas when passed through acidified ${\mathrm{KMnO}}_4$ solution, decolourises it. '$\mathrm{C}$' gets oxidised to another oxide '$\mathrm{D}$' in the presence of a heterogeneous catalyst. Identify $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$ and also give the chemical equation of reaction of '$\mathrm{C}$' with acidified ${\mathrm{KMnO}}_4$ solution and for conversion of '$\mathrm{C}$' to '$\mathrm{D}$'.

Identify the characteristic smell of sulphur dioxide from the following.

What is the chemical formula of sulphur dioxide?

When sulphur is oxidised using conc ${\mathrm{H}}_2{\mathrm{SO}}_4$ the obtained major product is

On reaction of moist ${\mathrm{SO}}_2$ with potassium permanganate, (Acidic) which is correctly observed?

Which has bleaching action due to reduction and it is temporary?

What is the product when $\mathrm{Mg}$ react with ${\mathrm{SO}}_2 ?$