Redox Reactions And Electrochemistry Ques 690
Question: Which of the following substances acts as an oxidising as well as a reducing agent-
Options:
A) $ Na_2O $ $ $
B) $ SnCl_2 $
C) $ Na_2O_2 $
D) $ NaNO_2 $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] In $ Na_2O,SnCl_2 $ and $ Na_2{{O}_2} $ central atom is either in lowest or highest oxidation state, so they can function either as an oxidizing .or a reducing agent but not both. However, the oxidation state of N in $ Na_2{{O}_2} $ is +3 which lies between its highest (+5) and lowest $ ( -3 ) $ values.
