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# NCERT

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

Answers (1)
R Rakesh

Let suppose the oxidation state of Na is to be x.

In the case of peroixide, the oxygen has  -1 oxidation state.

So, now 

 \\2x+2(-1)=0\\ 2x = 2\\ x=1

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