Question

Match List I with List II and select the correct answer using the codes given below the lists

List I (Compound) List II (Oxidation state of N)

(A) $N{O}_2$ (1) +5

(B) $HNO$ (2) -3

(C) $N{H}_3$ (3) +4

(D) $N_2{O}_5$ (4) +1

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Let us calculate the oxidation numbers for Nitrogen in each case:
(a) $\stackrel{\bullet }{N{O}_2};x-4=0;x=+4$
(b) $\stackrel{\bullet }{HNO};1+x-2=0;x=+1$
(c) $\stackrel{\bullet }{N{H}_3};x+3=0;x=-3$
(d) $\stackrel{\bullet }{N_2{O}_5};2x-10=0;x=\frac{10}{2};x=5$