#### Question

Find the oxidation state of sodium in Na_{2}O_{2}.

#### Solution 1

Let the oxidation state of Na be *x*. The oxidation state of oxygen, in case of peroxides, is –1.

Therefore,

2(x) + 2(-1) = 0

2x - 2 = 0

2x = 2

x = +1

Therefore, the oxidation sate of sodium is +1.

#### Solution 2

Let x be the oxidation state of Na in Na_{2}O_{2 } 2x + 2 (-1) = 0 2x – 2 = 0 2x = 2 x = +1.

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Solution Find the Oxidation State of Sodium in Na2o2. Concept: Some Important Compounds of Sodium.