In the reaction K₂Cr₂O₇ → Cr₂(SO₄)₃, the change in oxidation state of chromium is:

University of Ilorin CHM107 2026 past question

1. +6 → +3
2. +6 → +4
3. +6 → +2
4. +6 → 0

Register free to see the answer and step-by-step explanation

More University of Ilorin CHM107 2026 past questions

Related questions

• Which of the following ions can be determined using direct complexometric titration?
• The most commonly used titrant in complexometric titration is:
• EDTA stands for:
• The pH of 0.003 M HCl is:
• If EDTA forms complexes with metal ions of different charges, it is described as:
• The oxidation state of carbon in H₂C₂O₄ is: