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Write the rules for assigning oxidation number. |
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Answer» Solution :(1) All atoms in the elemental or MOLECULES state have zero oxidation state. (2) Elements ofgroup I and II in the periodic table always have +1 and +2 oxidation states respectively (3) HYDROGEN has +1 oxidation state in all its compounds except metal hydrides, where it is -1. (4) Oxygen has been ASSIGNED as oxidation number of -2 in all its compounds except perocides and oxygen fluoride. In peroxide it is -1 and in oxygen fluoride it is +2. (5) Halogens generally have -1 oxidation state Except fluorine. other halogens may have positive oxidation states in their oxides and inter halogen compounds (Fluorine always has -1 state). (6) The algebraic SUM of the oxidation number of all the elements in a compound is zero and that in an ion is EQUAL to the net charge onthe ion. |
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