Redox Reactions And Electrochemistry Ques 697
Question: The oxidation number of S in $ Na_2S_4O_6 $ is
Options:
A) +0.5
B) 2.5
C) +4
D) +6
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ Na_2S_4O_6:2+4x-12=0 $
$ \therefore x=\frac{10}{4}=2.5 $ Oxidation number of $ S=2.5 $