Question

Assign oxidation number to the underlined element in each of the following species. Na H₂ PO4​

Answer 1

i) Let assume oxidation number of P is x.

We know that,Oxidation number of Na = +1Oxidation number of H = +1Oxidation number of O = -2Then we have1(+1) + 2(+1) + 1 (x) + 4(-2) = 0

⇒ 1 + 2 + x - 8 = 0

⇒ x - 5 = 0

⇒ x = + 5

Explanation:

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