Find out the oxidation numbers of the underlined elements in the following compounds:

(a) Na₂SO₄ (S) Sodium (Na) has an oxidation state of +1 (since it’s a Group 1 element). Oxygen (O) has an oxidation state of -2. Let the oxidation state of sulfur (S) be xxx. The sum of the oxidation states in a neutral compound is zero: 2(+1)+x+4(−2)=0 2+x−8=0 x=+6 So, sulfur has an oxidation state … Read more