What is the oxidation number of nitrogen in the nitrate ion no31−?

+6

+5

+3

+2

Oxidation state on as in the nitrate ion : +5.

The sum of oxidation states on all atoms in an ion should be the same as the charge of the ion.

The oxidation state of nitrogen N tends to vary. However, the oxidation state of oxygen O is -2 in most cases, with the following exceptions:

To find the oxidation state on N, consider the atoms in a nitrate ion:

The oxidation state of each O atom is expected to be -2. There are three O atoms in each nitrate ion. The oxidation state of the three atoms will add up to .

The oxidation state of the N atom needs to be found. Charge on the nitrate ion is -1. Thus

.

Therefore, the oxidation state of the nitrogen N atom in the nitrate ion is +5.

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation: