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7. The p-block Elements
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Q19 of 72 Page 90

The oxidation state of central atom in the anion of compound NaH2PO2 will be ______.

calculation of oxidation state of P


Consider the oxidation state of P be x.


NaH2PO2 : ( +1)+(+1*2)+x+(-2*2) = 0


X = +1


Hence the correct answer is (iii).

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7. The p-block Elements
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