The following reaction occurs in basic solution: Br2 (aq) → Br– (aq) + BrO3– (aq) Which...

Question

Question

The following reaction occurs in basic solution:

Br₂ (aq) → Br^– (aq) + BrO₃^– (aq)

Which of the following statements is/are correct?

This equation describes the self-oxidation-reduction (disproportionation) reaction of bromine in water.
The oxidation number of Br changes from 0 to –1 and 0 to +1 in the reduction and oxidation half reactions respectively.
In the balanced equation the number of moles of OH^– is twice the moles of Br₂.

Answer 1

Answer #1

Two statements out of three are correct.

The equation is describing the self-oxidation-reduction reaction of bromine in water.

The Br2 undergoes both oxidation and reduction in this reaction which is called self-oxidation-reduction reaction.

It changes from 0 oxidation state to -1 oxidation state and 0 oxidation state to +5 oxidation state.

The second statement is false as bromine did not change from 0 to +1 oxidation state.

When we write the balanced form of the equation, we can observe that twice the moles of OH- reacts with the moles of Br2

The necessary reaction is given in the uploaded image.

Answer 2

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