Question

The balanced half-reaction in which dichromate ion is reduced to chromium metal is a ________ process. a. two-electron b. six-electron c. four-electron d. three-electron e. twelve-electron

Answer 1

The balanced half-reaction in which dichromate ion is reduced to chromium metal is a six-electron process.

Step-by-step explanation:

The dichromate ion (Cr2O72-) has an oxidation state of +6, while chromium metal has an oxidation state of 0. So, 6 electrons must be transferred from the dichromate ion to chromium metal for the reduction to occur.