NEETChemistryRedox Reactions
What is the net ionic equation for the oxidation of Fe2+ ions to Fe3+ ions in the presence of Cr 2 O 7 2- ions in acidic medium?
Options
- A6Fe2+(aq) +Cr 2 O 7 2-(aq) → 6 Fe3+(aq) + 2Cr3+(aq) + 7H 2 O(l)
- B6Fe2+(aq) +Cr 2 O 7 2-(aq) + 14H+(aq) → 6Fe3+(aq) + 2Cr3+(aq) + 7H 2 O(l)
- CFe2+(aq) +Cr 2 O 7 2-(aq) → Fe3+(aq) + Cr3+(aq)
- DFe2+(aq) +Cr 2 O 7 2-(aq) + 6e- →Fe3+(aq) + 2Cr3+(aq) + 7H 2 O(l)
Correct answer
B. 6Fe2+(aq) +Cr 2 O 7 2-(aq) + 14H+(aq) → 6Fe3+(aq) + 2Cr3+(aq) + 7H 2 O(l)
Step-by-step solution
This is the net ionic equation provided in the passage.