Q. The stoichiometry of the following reaction is $K_{2}S_{2}O_{8}(aq) + 2KI(aq) \rightarrow 2K_{2}{SO}_{4}(aq) + I_{2}(aq)$
A) 2 : 2
B) 1 : 1
C) 1 : 2
D) 2 : 1
Explanation
(c)
$K_{2}S_{2}O_{8}\ (aq) + 2KI\ (aq) \rightarrow 2K_{2}SO_{4}(aq) + I_{2}(aq)$
In this reaction one mole of $K_{2}S_{2}O_{8}$ reacts with 2 moles of KI,
Hence the stoichiometry of this reaction is 1:2.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.