CUET · CHEMISTRY · PYQ PAPER 2023
Arrange the given compounds in order of decreasing oxidation state of nitrogen:
A. \(N_2\)
B. \(NO\)
C. \(HNO_3\)
D. \(NH_4Cl\)
Choose the correct answer from the options given below:
- A \(HNO_3 > NO > NH_4Cl > N_2\)
- B \(HNO_3 > NO > N_2 > NH_4Cl\)
- C \(HNO_3 > NH_4Cl > NO > N_2\)
- D \(NO > HNO_3 > NH_4Cl > N_2\)
Answer & Solution
Correct Answer
(B) \(HNO_3 > NO > N_2 > NH_4Cl\)
Step-by-step Solution
Detailed explanation
\(N\) in \(N_2\): 0 \(N\) in \(NO\): \(x + (-2) = 0 \Rightarrow x = +2\) \(N\) in \(HNO_3\): \(+1 + x + 3(-2) = 0 \Rightarrow x = +5\) \(N\) in \(NH_4Cl\): \(x + 4(+1) = +1 \Rightarrow x = -3\) \(HNO_3 > NO > N_2 > NH_4Cl\)
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