Question

Oxidation state of nitrogen is incorrectly given in which of the following compound?

• A. $\left[Co\right(N{H}_3{)}_{5}Cl]C{l}_2$, $-3$
• B. $N{H}_{2}OH$, $-1$
• C. $(N_2{H}_5{)}_{2}S{O}_4$, $+2$
• D. $M{g}_3{N}_2$, $-3$

Answer 1

Answer: (C)

$(N_2{H}_5{)}_{2}S{O}_4$, $+2$

Let X be the oxidation state of N in $(N_2{H}_5{)}_{2}S{O}_4$
$2(2X-5)-2=0$
$4X-12=0$
$4X=12$
$X=+3$
Hence, the oxidation state of N in $(N_2{H}_5{)}_{2}S{O}_4$ is +3.