Which of the following is a combination and which is a displacement reaction ?

(a) $C l_{2} + 2 K I ⟶ 2 K C I + I_{2}$

(b) $2 K + C I_{2} ⟶ 2 K C I$

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Solution

A) is a displacement reaction
b) is a combination reaction

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1. 2KBr (aq)+Cl₂ $\to$ 2KCl (aq)+Br₂(aq)

2. Fe (s)+S (s) $\to$ FeS(s)

Identify the two reactions as a combination or displacement reaction.

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