Answers

2015-05-12T14:40:17+05:30
Ans.1=> Oxidation number in oxygen in H₂O₂ is -1.
             Oxidation number in oxygen in O₂F₂ is +1.
Ans. 2=> Since H₂SO₄ ionizes almost completely in water, hence no of H⁺ ions                    will be (2×0.5) mole = 1 mole.
               (H⁺) = 1
               pH = -log (H⁺)
                    = -log 1
                    =  0.
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