Question

What happens when hydrogen combines with chlorine in diffused light?

Answer 1

• Hydrogen is the first element in the periodic table.
• It is the lightest element known so far.
• It is the most abundant element in the universe.

Reaction of hydrogen with chlorine(${\mathrm{Cl}}_2$).

Hydrogen combines with chlorine (greenish yellow in colour) in diffuse sunlight to form colourless hydrogen chloride gas.

Hydrogen chloride gas is highly soluble in water and forms hydrochloric acid.

$$\begin{gathered} {\mathrm{H}}_2+{\mathrm{Cl}}_2\stackrel{\mathrm{sunlight}}{\to }2\mathrm{HCl} \\ \mathrm{Hydrogen}\mathrm{Chlorine}\mathrm{Hydrogen}\mathrm{chloride}\mathrm{gas} \end{gathered}$$