consider the reaction below.\n2i⁻(aq)+cl₂(g)→2cl⁻(aq)+i₂(aq)\nwhich half - reaction correctly describes the…

consider the reaction below.\n2i⁻(aq)+cl₂(g)→2cl⁻(aq)+i₂(aq)\nwhich half - reaction correctly describes the reduction that is taking place?\ncl₂(g)+2e⁻→2cl⁻(aq)\ncl₂(g)+e⁻→2cl⁻(aq)\n2i⁻(aq)→i₂(aq)+2e⁻\n2i⁻(aq)→i₂(aq)+e⁻

consider the reaction below.\n2i⁻(aq)+cl₂(g)→2cl⁻(aq)+i₂(aq)\nwhich half - reaction correctly describes the reduction that is taking place?\ncl₂(g)+2e⁻→2cl⁻(aq)\ncl₂(g)+e⁻→2cl⁻(aq)\n2i⁻(aq)→i₂(aq)+2e⁻\n2i⁻(aq)→i₂(aq)+e⁻

Answer

Brief Explanations:

Reduction is the gain of electrons. In the given reaction, chlorine in $Cl_2$ goes from an oxidation - state of 0 to - 1 in $Cl^-$. It gains electrons. The correct half - reaction for the reduction of $Cl_2$ is $Cl_2(g)+2e^-\longrightarrow2Cl^-(aq)$ as two electrons are gained to form two chloride ions.

Answer:

A. $Cl_2(g)+2e^-\longrightarrow2Cl^-(aq)$