Question

Oxidation number of ???

• A. $- \frac{1}{3}$
• B. 3
• C. 0
• D. -3

Answer 1

Answer: (A)

$- \frac{1}{3}$

Answer 2

Let oxidation number of N in ${N_3H}$ = x $3x + 1 = 0$ or $3x = -1$ $\therefore \, x = - 1/3$