Which of the following displaces Br_2 from an | vedclass

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(A) The displacement of a halide ion by a halogen depends on their standard reduction potentials. According to the electrochemical series,the oxidizin

Vedclass · Accepted Answer

$Cl_2$

Vedclass · Answer

(A) The displacement of a halide ion by a halogen depends on their standard reduction potentials. According to the electrochemical series,the oxidizing power of halogens decreases in the order: $F_2 > Cl_2 > Br_2 > I_2$. Since $Cl_2$ has a higher reduction potential than $Br_2$,it can oxidize bromide ions $(Br^-)$ to bromine $(Br_2)$ according to the reaction: $Cl_2(g) + 2Br^-(aq) \rightarrow 2Cl^-(aq) + Br_2(l)$. Therefore,$Cl_2$ is the correct answer.

Which of the following displaces $Br_2$ from an aqueous solution containing bromide ions?

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