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Question

How do you find the oxidation number of nitrogen in NO?


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Solution

Oxidation number:

  1. It is the number of electrons that an atom in a molecule can share, lose, or gain during the formation of a chemical bond with another atom.
  2. The sum of the oxidation numbers of the atoms in a neutral molecule is zero. For charged molecules, the total of the atom's oxidation numbers equals the molecule's charge.
  3. NO or Nitrogen monoxide is a neutral atom so the overall charge will be zero.
  4. Let us take the charge on Nitrogen to be "x" and we know the charge on oxygen is-2. Therefore the equation for the charge is x+-2=0
  5. Calculating the value of x we get, x=+2

Therefore, the oxidation number of Nitrogen=+2.


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