Chlorine gas is passed into a solution containing KF, KI, and KBr and ${\rm{CHC}}{{\rm{l}}_3}$ is added. The initial colour in ${\rm{CHC}}{{\rm{l}}_3}$ layer is :

Violet due to formation of ${{\rm{I}}_2}$

Orange due to formation of ${\rm{B}}{{\rm{r}}_2}$

Colourless due to formation of ${{\rm{F}}_2}$

No colour change due to no reaction

NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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Understanding +4 | -1

Chlorine gas is passed into a solution containing KF, KI, and KBr and

\mathrm{CHC}{\mathrm{l}_3}

is added. The initial colour in

\mathrm{CHC}{\mathrm{l}_3}

layer is :

View answer and explanation

Correct option: A

Violet due to formation of

{\mathrm{I}_2}

Option A (Violet due to formation of

I_2

) is correct because chlorine will oxidize iodide ions to iodine, which dissolves in chloroform to give a violet color.

Practice All Chapter MCQs →

A{l^{3 + }}

{H_2}

{H^ + }

\mathrm{LiCl},{\rm{NaCl {\kern 1pt}{\kern 1pt}and {\kern 1pt}{\kern 1pt}KCl}}

\left(\mathrm{CuSO}_4\right)

\mathrm{A}{\mathrm{l}^{3 + }}