Redox Reactions And Electrochemistry Ques 651

Question: Which reaction involves neither oxidation nor reduction-

Options:

A) $ CrO_4^{2-}\xrightarrow{{}}Cr_2O{{_7^{2-}}^{~}} $

B) $ Cr\xrightarrow{{}}CrCl_3 $

C) $ Na\xrightarrow{{}}N{{a}^{+}} $

D) $ 2S_2O_3^{2-}\xrightarrow{{}}S_4O_6^{2-} $

Show Answer

Answer:

Correct Answer: A

Solution:

[a] O. N. of Cr on both sides is+6.



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