Q25 / 170 · Manipal (MET) 2020 · Chemistry
In the equilibrium mixture, $\mathrm{KI}+\mathrm{I}_2 \rightleftharpoons \mathrm{KI}_3$; the concentration of KI and $\mathrm{I}_2$ is made two fold and three fold respectively. The concentration of $\mathrm{Kl}_3$ becomes
- Correct answerAtwo fold
- Bthree fold
- Cfive fold
- Dsix fold
Solution
$\begin{aligned} & \mathrm{KI}+\mathrm{I}_2 \longrightarrow \mathrm{Kl}_3 \text { or } \mathrm{I}^{-}+\mathrm{I}_2 \underset{\text { from } \mathrm{KI}}{\longrightarrow} \\ & \mathrm{I}_3^{-}\end{aligned}$
On increasing concentration of KI and $\mathrm{I}_2$ two fold and three fold respectively, the concentration of $\mathrm{Kl}_3$ becomes two fold.
Hence, the correct answer is option: 'A'.