Redox Reactions And Electrochemistry Ques 500

Question: In the following reaction $ Cr_2O_7^{-}+14{{H}^{+}}+6{{I}^{-}}\to , $ $ 2C{{r}^{3+}}+3H_2O+3I_2 $ Which element is reduced [CPMT 1976]

Options:

A) $ Cr $

B) $ H $

C) $ O $

D) $ I $

Show Answer

Answer:

Correct Answer: A

Solution:

$ \overset{+6}{\mathop{Cr_2O_7^{2-}}},+14{{H}^{+}}+6{{I}^{-}}\to \overset{{}}{\mathop{2C{{r}^{3+}}}},+3H_2O+3I_2 $



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