Redox Reactions And Electrochemistry Question 280
Question: In which one of the following changes there are transfer of five electrons [NCERT 1982]
Options:
A) $ MnO_4^{-}\to M{{n}^{2+}} $
B) $ CrO_4^{2}\to C{{r}^{3+}} $
C) $ MnO_4^{2-}\to MnO_2 $
D) $ Cr_2O_7^{2-}\to 2C{{r}^{3+}} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ MnO_4^{-}\to M{{n}^{2+}}+5{{e}^{-}} $ .
BETA
