It requires 40mL of 1 M `Ce^(4+)` to titrate 20mL of 1 M `Sn^(2+) " to "Sn^(4+)` . What is the oxidation state of the cerium in the product?

It requires 40mL of 1 M `Ce^(4+)` to titrate 20mL of 1 M `Sn^(2+) " to "Sn^(4+)` . What is the oxidation state of the cerium in the product?
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It requires 40mL of 1 M `Ce^(4+)` to titrate 20mL of 1 M `Sn^(2+) " to "Sn^(4+)` . What is the oxidation state of the cerium in the product?
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