Chemistry · REDOX REACTIONS

Match List-I with List-II: List-I (Compound) List-II (Oxidation State of Underlined Element) A \( \underline{\text{O}}\text{F}_2 \) I +3 B \( \text{K}\underline{\text{O}}_2 \) II +2 C \( \text{Ca}\underline{\text{H}}_2 \) III \( -\frac{1}{2} \) D \( \underline{\text{Fe}}_2\text{O}_3 \) IV -1 Choose the correct answer from the options given below:

1. A
   A-(II), B-(IV), C-(III), D-(I)
2. B
   A-(II), B-(III), C-(IV), D-(I)
3. C
   A-(III), B-(II), C-(IV), D-(I)
4. D
   A-(I), B-(III), C-(IV), D-(II)