Redox Reactions And Electrochemistry Ques 769
Question: Which of the following reaction involves neither oxidation nor reduction
Options:
A) $ CrO_4^{2-}\to Cr_2O_7^{2-} $
B) $ Cr\to CrCl_3 $
C) $ Na\to N{{a}^{+}} $
D) $ 2S_2O_3^{2-}\to S_4O_6^{2-} $
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ CrO_4^{2-}\to Cr_2O_7^{2-} $ O.N of Cr does not change. It remains +6 on both sides. Hence there is no oxidation or reduction.
