Answer :
In Copper (III) Nitride, the copper atom has an oxidation state of [tex]$+3$[/tex]. Since the compound is neutral, the sum of the oxidation states of all atoms must equal zero. Let the oxidation state of nitrogen be [tex]$x$[/tex]. We can set up the equation as follows:
[tex]$$
(+3) + x = 0
$$[/tex]
To find [tex]$x$[/tex], subtract [tex]$+3$[/tex] from both sides:
[tex]$$
x = -3
$$[/tex]
Thus, the charge of nitrogen in Copper (III) Nitride is [tex]$-3$[/tex], which corresponds to option (b).
[tex]$$
(+3) + x = 0
$$[/tex]
To find [tex]$x$[/tex], subtract [tex]$+3$[/tex] from both sides:
[tex]$$
x = -3
$$[/tex]
Thus, the charge of nitrogen in Copper (III) Nitride is [tex]$-3$[/tex], which corresponds to option (b).
