Redox Reactions And Electrochemistry Question 432
Question: The number of electrons involved in the reduction of $ Cr_2O_7^{2-} $ in acidic solution to $ C{{r}^{3+}} $ is [EAMCET 1983]
Options:
0
2
3
5
Show Answer
Answer:
Correct Answer: C
Solution:
$ Cr_2O_7^{2-}+6{{e}^{-}}\to 2C{{r}^{3+}} $ . In this reaction six electrons are required for the reduction of $ Cr_2O_7^{2-} $ into $ C{{r}^{3+}} $ .
BETA
