Which of the following reactions does not involve either oxidation or reduction?
A. VO2+ → V2O3
B. Na → Na+
C. CrO2-4 → Cr2O2-7
D. Zn2+ →Zn
Answer:C
Which of the following reactions does not involve either oxidation or reduction?
A. VO2+ → V2O3 B. Na → Na+ C. CrO2-4 → Cr2O2-7 D. Zn2+ →Zn