First slide

Chemical reactions and calculations

Question

Which represents disproportionation:

Moderate

A

$2 {Cu}^{+} ⟶ {Cu}^{2 +} + Cu$
B

$3 I_{2} ⟶ 5 I^{-} + I^{5 +}$
C

${Cu}^{2 +} + Zn ⟶ {Zn}^{2 +} + Cu$
D

Xe+F₂ $\to$ XeF₂

Solution

$3 I_{2} ⟶ 5 I^{-} + I^{5 +}$
$2 {Cu}^{+} \to {Cu}^{+ 2} + Cu$

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