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I am unable to calculate the oxidation no. MOST OF THE TIME THE OXIDATION NO THAT I GET USING FORMULA IS NOT CORRECT. I HAVE TRIED TO CALCULATE OXIDATION NO USING STRUCTURE BUT HOW DO I KNOW THAT THE THAT I HAVE MADE IS CORRECT???

I am unable to calculate the oxidation no. 
MOST OF THE TIME THE OXIDATION NO THAT I GET USING FORMULA IS NOT CORRECT. I HAVE TRIED TO CALCULATE OXIDATION NO USING STRUCTURE BUT HOW DO I KNOW THAT THE THAT I HAVE MADE IS CORRECT???

Grade:11

1 Answers

Umakant biswal
5349 Points
7 years ago
@ bhavika 
Donot try to calculate the oxidation number by structure , formula one is very easy , 
u just need to remember some formula and rules . 
  1. 1-The oxidation number of a free element is always 0.
    2-
  2. The oxidation number of a monatomic ion equals the charge of the ion.
  3. 3-Fluorine in compounds is always assigned an oxidation number of -1.
  4. 4- The alkali metals (group I) always have an oxidation number of
    +1.
    and oxygen generally have -2 , but not in peroxide and other cases , 
    all the rules are well explained in the ncert textbook ,of class 11th redox reaction chapter . 
    kindly go through that and ask if u hv any perticular doubt . 
    ALL THE BEST ..

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