Eduprobe
Question:
The stoichiometry of the following reaction is: K2S2O8(aq) + 2KI(aq) → 2K2SO4(aq) + I2(aq)
2:2
1:3
2:1
1:2
Solution:
Stoichiometry of a reaction is given on the basis of the stoichiometric ratio of reactants. 1 mole of K2S2O8 reacts with 2 moles KI. So, for the given reaction, it is 1:2. Hence, option B is correct.