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JEE Main & Advanced Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ Question Bank Numerical Value Type Questions - Redox Reactions

  • question_answer
    50 mL of 0.1 M solution of a salt reacted with 25 mL of 0.1 M solution of sodium sulphite. The half reaction for the oxidation of sulphite ion is: \[SO_{3}^{2-}(aq)+{{H}_{2}}O(l)\to SO{{_{4}^{2-}}^{~}}(aq)+2{{H}^{+}}(aq)+2{{e}^{-}}\] If the oxidation number of metal in the salt was 3, what would be the new oxidation number of metal?

    Answer:

    +2


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