Question

Write the chemical reaction for the reaction of dilute sulphuric acid with aluminium powder.

Answer 1

Chemical reaction:

• A chemical reaction is a reaction where two or more compounds called reactants react to form different compounds called products.

The reaction between sulphuric acid and aluminium powder:

• When dilute sulphuric acid reacts with aluminium powder, aluminium sulphate is formed and hydrogen gas is evolved.

$$\begin{gathered} 3{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)+2\mathrm{Al}\left(\mathrm{s}\right)\to {\mathrm{Al}}_2{\left({\mathrm{SO}}_4\right)}_3\left(\mathrm{aq}\right)+3{\mathrm{H}}_2\left(\mathrm{g}\right) \\ (\mathrm{dil}.\mathrm{Sulphuric}(\mathrm{Aluminium}(\mathrm{Aluminium}(\mathrm{Hydrogen} \\ \mathrm{acid})\mathrm{powder})\mathrm{sulphate})\mathrm{gas}) \end{gathered}$$

• This reaction can be explained by reactivity seres.
• As aluminium is more reactive when compared to hydrogen. So, the hydrogen can be easily displaced from sulphuric acid and forms aluminium sulphate.
• The aluminium metal gets dissolved in the acid solution and forms aluminium sulphate.