Question

What is the oxidation number of N in Ca(NO3)2

Answer 1

Answer:

The oxidation number of N in $Ca(NO_{3} )_{2}$ is +5.

Explanation:

Oxidation number of calcium = +2

Oxidation number of oxygen = -2

Oxidation number of nitrogen = x

Here we have 1 calcium, 2 nitrogen, and 6 oxygen atoms.

Total charge of the molecule = 2 + 2x + 6*(-2)

Since $Ca(NO_{3} )_{2}$ is a neutral molecule, the net charge will be 0.

∴ 2 + 2x + 6*(-2) = 0

2x = 10

x = +5

The oxidation number of N in $Ca(NO_{3} )_{2}$ is +5.

Answer 2

Answer:

oxidation number of N is 1