Question

Find the values of w, x, y and z for the following reaction. Also, identify the type of reaction.

w(Potassium bromide) + x(Barium iodide) $⟶$ y(Potassium iodide) + z(Barium bromide)

• A. 1, 1, 1, 1 ; Double displacement reaction
• B. 1, 1, 1, 1 ; Decomposition reaction
• C. 2, 1, 2, 1 ; Double displacement reaction
• D. 2, 1, 2, 1 ; Decomposition reaction

Answer 1

The correct option is C 2, 1, 2, 1 ; Double displacement reaction

Reaction:
$2KBr+Ba{I}_2\to 2KI+BaB{r}_2$

It is a double displacement reaction, also known as a double replacement reaction (is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.)