How do you determine the oxidation number of nitrogen in the nitrate ion?

We have to find the oxidation number of N in nitrate ion that is NO3

Solution

Let the oxidation number of N in NO3 be x.

The oxidation state of oxygen is -2. {The three O atoms have a total oxidation number of -6.}

Since the atom as the only one negatively charged. The sum of all the oxidation numbers in a polyatomic ion is equal to the charge on the ion. The equation can be represented as follows

X + 3 (-2) = -1

X -6=-1

x = -1 + 6

X =5

Hence the oxidation number of N in nitrate ion that is NO3 is 5

Answer

The oxidation number of N in nitrate ion that is NO3 is 5

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