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) 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;x−4=0;x=+4 (b) ∙HNO;1+x−2=0;x=+1 (c) ∙NH3;x+3=0;x=−3 (d) ∙N2O5;2x−10=0;x=102;x=5
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