Question

Choose the correct word from the brackets to complete the sentences.
(i) Sulphur can be converted to sulphuric acid using ......... (concentrated/dilute) nitric acid.
(ii) Write the equation for the reaction in 2 (i).

Answer 1

(i) Sulphur can be converted to sulphuric acid using concentrated nitric acid.
(ii) Equations for the reaction in 2 (i):

$$\begin{gathered} 2{\mathrm{HNO}}_3\to {\mathrm{H}}_2\mathrm{O}+2{\mathrm{NO}}_2+\left[\mathrm{O}\right] \\ \mathrm{S}+3\left[\mathrm{O}\right]\to {\mathrm{SO}}_3 \\ {\mathrm{SO}}_3+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_2{\mathrm{SO}}_4 \end{gathered}$$