Which among the following chemical equations represents a non-metal displacement reaction?

Step-by-step solution

In a non-metal displacement reaction, a non-metal displaces another non-metal from its compound. In the reaction Cl₂ + 2KBr 2KCl + Br₂ , chlorine ( Cl₂ ), which is a non-metal, displaces bromine ( Br₂ ), another non-metal, from potassium bromide ( KBr ). Therefore, this is a non-metal displacement reaction. For the other options: TiCl₄ + 2Mg Ti + 2MgCl₂ is a metal displacement reaction since magnesium displaces titanium. 2NaH 2Na + H₂ is a decomposition reaction. 4H₃PO₃ 3H₃PO₄ + PH₃ is a disproportionation reaction