Question

Give balanced chemical equation for which of the following-

laboratory preparation of nitric acid $200°\mathrm{C}$

Answer 1

1. Heating the mixture of sodium nitrate$\left({\mathrm{NaNO}}_2\right)$ sulphuric acid$\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$ at $200°\mathrm{C}$ produces nitric acid in laboratory.
2. $$\begin{gathered} {\mathrm{NaNO}}_{2_{\left(\mathrm{s}\right)}}+{\mathrm{H}}_2{\mathrm{SO}}_{4_{\left(\mathrm{aq}\right)}}\stackrel{200°\mathrm{C}}{\to }\underset{\mathrm{Sodium}\mathrm{Hydrogen} \\ \mathrm{sulphate}}{{\mathrm{NaHSO}}_{4_{\left(\mathrm{aq}\right)}}}+\underset{\mathrm{Nitric}\mathrm{acid}}{{\mathrm{HNO}}_{3_{\left(\mathrm{l}\right)}}} \end{gathered}$$