Multiple Choice
The CrO42- ion was involved in a chemical reaction, during which it is transformed into Cr3+ ions. What is the change in oxidation number of the chromium atom?
A) The oxidation number increases by 5 units.
B) The oxidation number decreases by 5 units.
C) The oxidation number increases by 1 unit.
D) The oxidation number decreases by 3 units.
E) The oxidation number decrease by 4 units.
Correct Answer:

Verified
Correct Answer:
Verified
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