Chlorine gas is passed through $100\,\text{cm}^3$ of hot $4.0\,\text{mol dm}^{-3}$ sodium hydroxide until the reaction has finished. $6\text{NaOH(aq)} + x\text{Cl}_2\text{(aq)} \rightarrow y\text{NaCl(aq)} + z\text{NaClO}_3\text{(aq)} + 3\text{H}_2\text{O(l)}$ Which row is the correct one?
- A$x = 3$; $[\text{Na}^+]\text{(aq) after reaction} = 4.0\,\text{mol dm}^{-3}$
- B$x = 3$; $[\text{Na}^+]\text{(aq) after reaction is less than }4.0\,\text{mol dm}^{-3}$
- C$x = 6$; $[\text{Na}^+]\text{(aq) after reaction} = 4.0\,\text{mol dm}^{-3}$
- D$x = 6$; $[\text{Na}^+]\text{(aq) after reaction is less than }4.0\,\text{mol dm}^{-3}$