Oxidation States in Reaction Products

Steps:

• Identify products of reaction 1: Cl⁻ and ClO⁻ (H₂O contains no chlorine).
• Determine oxidation state of Cl in Cl⁻: -1 (as chloride ion).
• Determine oxidation state of Cl in ClO⁻: +1 (O is -2, charge -1, so Cl = +1).
• Confirm two distinct states for Cl: -1 and +1.

Why B is correct:

• In reaction 1 products, Cl shows oxidation states -1 (in Cl⁻) and +1 (in ClO⁻), per standard oxidation number rules.

Why the others are wrong:

• A: The reactions depend on temperature, but no details specify which requires higher temperature.
• C: In reaction 2 products (Cl⁻, ClO₃⁻, H₂O), all O atoms are -2, same state.
• D: Option incomplete, cannot evaluate.

Final answer: B