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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) NO2                                   (1) +5
(B) HNO                                  (2) -3
(C) NH3                                   (3) +4
(D) N2O5                                 (4) +1
Options:
A .  A2 B3 C4 D1
B .  A3 B1 C2 D4
C .  A3 B4 C2 D1
D .  A2 B3 C1 D4
Answer: Option C
:
C
Let us calculate the oxidation numbers for Nitrogen in each case:
(a) NO2;x4=0;x=+4
(b) HNO;1+x2=0;x=+1
(c) NH3;x+3=0;x=3
(d) N2O5;2x10=0;x=102;x=5

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