Redox Reactions And Electrochemistry Ques 400
Question: The oxidation number of $ Fe $ and $ S $ in iron pyrites are [RPMT 1997]
Options:
A) 4, - 2
B) 2, - 1
C) 3, - 1.5
D) 3, - 1
Show Answer
Answer:
Correct Answer: A
Solution:
$ \overset{*}{\mathop{Fe}},S_2 $
$ Fe\overset{*}{\mathop{S_2}}, $ $ x-4=0 $ $ 4+2x=0 $ $ x=+4 $ $ 2x=-4 $ $ x=\frac{-4}{2}=-2 $ .
