Why is chlorine and water a disproportionation reaction?

1 Answer
Jun 25, 2018

Answer:

I think you refer to the disproportionation of elemental chlorine to chloride anion, and hypochlorous acid....

Explanation:

And we can go thru the rigmarole of redox transtions…

#"Elemental chlorine is reduced (i):"#

#1/2Cl_2 +e^(-) rarr Cl^-#

#"Elemental chlorine is oxidized to hypochlorous acid (ii):"#

#1/2Cl_2 + H_2O(l) rarr HOstackrel(+I)Cl+ +H^+ +e^(-) #

And we adds #(i)+(ii)# to get....

#Cl_2 + H_2O(l) rarr HOstackrel(+I)Cl+ +HCl(aq)#

The given equation is balanced with respect to mass and charge, as indeed it MUST be if we purport to represent chemical reality...