Analytical Chemistry Question 262
Question: In the reaction $ I_2+2S_2O_3^{-}\to 2{l^{-}}+S_4O_6^{2-}; $ the equivalent weight of iodine will be equal to
[MNR 1985; UPSEAT 2000]
Options:
A) Molecular weight
B) 1/2 the molecular weight
C) 1/4 the molecular weight
D) Twice the molecular weight
Show Answer
Answer:
Correct Answer: B
Solution:
$ \underset{(O)}{\mathop{I_2}}+2S_2O_3^{-}\to \underset{(-2)}{\mathop{2{I^{-}}}}+S_4O_6^{2-} $
$ \therefore $ Eq. wt. = $ \frac{1}{2}\ \times \ \text{molecular wt}\text{.} $
BETA
