Question

Give reason for carbon dioxide and sulfur dioxide cannot be distinguished by using lime water.

Answer 1

1. As we pass carbon dioxide and sulfur dioxide to lime water both turns into milky so they can't be distinguish it.
2. The reaction can be written as:
3. $$\begin{gathered} \mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)\to {\mathrm{CaCO}}_3\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \\ \mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)+{\mathrm{SO}}_2\left(\mathrm{g}\right)\to {\mathrm{CaSO}}_3\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \end{gathered}$$