QuestionAugust 8, 2025

Listen Which of the following ions has the highest NO stretching frequency? NO^+ NO_(2)^- NO_(3)^- Cannot be determined

Listen Which of the following ions has the highest NO stretching frequency? NO^+ NO_(2)^- NO_(3)^- Cannot be determined
Listen
Which of the following ions has the highest NO stretching frequency?
NO^+
NO_(2)^-
NO_(3)^-
Cannot be determined

Solution
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Answer

\( \mathrm{NO}^{+} \) Explanation 1. Analyze Bond Order The bond order affects the stretching frequency. Higher bond order generally leads to a higher stretching frequency. 2. Determine Bond Orders - \( \mathrm{NO}^{+} \): Bond order = 3 (triple bond) - \( \mathrm{NO}_{2}{ }^{-} \): Bond order = 1.5 (resonance structure) - \( \mathrm{NO}_{3}{ }^{-} \): Bond order = 1.33 (resonance structure) 3. Compare Frequencies Higher bond order corresponds to higher stretching frequency. Thus, \( \mathrm{NO}^{+} \) with bond order 3 has the highest frequency.

Explanation

1. Analyze Bond Order<br /> The bond order affects the stretching frequency. Higher bond order generally leads to a higher stretching frequency.<br /><br />2. Determine Bond Orders<br /> - \( \mathrm{NO}^{+} \): Bond order = 3 (triple bond)<br /> - \( \mathrm{NO}_{2}{ }^{-} \): Bond order = 1.5 (resonance structure)<br /> - \( \mathrm{NO}_{3}{ }^{-} \): Bond order = 1.33 (resonance structure)<br /><br />3. Compare Frequencies<br /> Higher bond order corresponds to higher stretching frequency. Thus, \( \mathrm{NO}^{+} \) with bond order 3 has the highest frequency.
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