Question

Name all the particles present in the sodium chloride solution.

Answer 1

• Step 1 : The particles present in the sodium chloride solution.
• Dissociation of sodium chloride :
  $\mathrm{NaCl}(\mathrm{aq}.)\to {\mathrm{Na}}^{+}(\mathrm{aq}.)+{\mathrm{Cl}}^{-}(\mathrm{aq}.)$
  At cathode: reduction of $2{\mathrm{Na}}^{+}(\mathrm{aq}.)+{\mathrm{e}}^{-}\to \mathrm{Na}\left(\mathrm{I}\right)$
  At anode: oxidation of $2{\mathrm{Cl}}^{-}(\mathrm{aq}.)\to {\mathrm{Cl}}_2(\mathrm{g})+2{\mathrm{e}}^{-}$
  Reaction is written as: $2{\mathrm{Na}}^{+}(\mathrm{aq}.)+2{\mathrm{Cl}}^{-}(\mathrm{aq}.)\to 2\mathrm{Na}\left(\mathrm{I}\right)+{\mathrm{Cl}}_2(\mathrm{g})$
• Therefore, the various ions present in sodium chloride solution is :
• Sodium ions
• Chloride ions
• Hydrogen ions
• Hydroxyl ions
• Water molecules.