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23-01-2024
Chemistry

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In an experiment, 50 mL of 0.1 M solution of a salt reacted with 25 mL of 0.1 M solution of sodium sulphite. The half equation for the oxidation of sulphite ion is:
SO₃²⁻(aq)+H2O→SO₄²⁻(aq)+2H⁺(aq)+2e⁻
If the oxidation number of the metal in the salt was 3, what would be the new oxidation number of the metal?
A. 0
B. 1
C. 2
D. 4

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