# Question #c045e

$\stackrel{0}{C} {l}_{2} + \stackrel{+ 1}{N} a \stackrel{- 2}{O} \stackrel{+ 1}{H} \to \stackrel{+ 1}{N} a \stackrel{+ 5}{C} l {\stackrel{- 2}{O}}_{3} + \stackrel{+ 1}{N} a \stackrel{- 1}{C} l + {\stackrel{+ 1}{H}}_{2} \stackrel{- 2}{O}$
This is a disproportionation reaction where same element $C l$ gets oxidised as well as reduced.