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What is the change in oxidation number of bromine in the following re-dox reaction?
Cl2 + 2HBr — 2HCl + Brz

A) -2,0
B) -1:0
C) 0:-1
D) 0; -2

Respuesta :

adioabiola

The change in oxidation number of bromine according to the given redox reaction is; Choice B: -1, 0

According to the question;

  • We are required to determine the change in oxidation number of Bromine in the given redox reaction.

In essence, we must first know that the oxidation state of bromine in HBr is , Br-.

  • As such, it's oxidation state is -1 on the reactants side of the equation.

Additionally, Bromine exists as a molecule on the product side of the equation, where it's oxidation state is zero, 0.

Therefore, the change in oxidation number is; Choice B; -1;0.

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