Which of the following reactions is an example of a non-metal displacement redox reaction?

Step-by-step solution

In Cr ₂ O ₃( s ) + 2 Al ( s ) Al ₂ O ₃( s ) + 2 Cr ( l ) , aluminium displaces chromium from its oxide. This is a metal displacement reaction. In 2 H ₂ O ₂( aq ) 2 H ₂ O ( l ) + O ₂( g ) , hydrogen peroxide decomposes into water and oxygen. This is a disproportionation reaction. In Cl ₂( g ) + 2 KBr ( aq ) 2 KCl ( aq ) + Br ₂( l ) , chlorine displaces bromine from potassium bromide. Since both chlorine and bromine are non-metals, this is a non-metal displacement reaction. In 2 NaH ( s ) 2 Na ( s ) + H ₂( g ) , sodi