Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

In aqueous solution, the acid HIO undergoes disproportionation as shown in the equation below, where $m$, $n$, $p$ and $q$ are the smallest whole numbers in their simplest ratio. $m\text{HIO} \rightarrow n\text{I}_2 + p\text{HIO}_3 + q\text{H}_2\text{O}$ Oxidation numbers may be used to balance this equation. What are the values of $n$ and $p$?

  • A$n=1,\ p=2$
  • B$n=2,\ p=1$
  • C$n=4,\ p=1$
  • D$n=4,\ p=2$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI