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**Select the structure that best fits the IR spectrum.** The given image includes five different chemical structures labeled A, B, C, D, and E. Below these structures is an infrared (IR) spectrum graph. ### Structures: - **Structure A**: Features a carbonyl group (C=O) bonded to an alkyne group. - **Structure B**: Includes a carbonyl group adjacent to a methyl group on a benzene ring. - **Structure C**: Contains a carbonyl group with an adjacent ethyl group on a benzene ring. - **Structure D**: Shows a benzene ring bonded to a primary alcohol group. - **Structure E**: Has a carbonyl group bonded to an ethyl group. ### IR Spectrum Graph Explanation: - **X-axis (Wavenumber cm⁻¹)**: Ranges from 4000 to 600 cm⁻¹ and indicates the frequency of vibration. - **Y-axis (% Transmittance)**: Shows the percentage of transmittance as a function of the wavenumber. - **Key Peaks**: - A broad peak near 3400 cm⁻¹, likely indicating an O-H stretch, suggesting an alcohol. - Sharp peaks around 1700 cm⁻¹ suggesting C=O stretching. - Various C-H stretching peaks in the 3000-2850 cm⁻¹ range. ### Options: - ○ STRUCTURE A - ○ STRUCTURE B - ○ STRUCTURE C - ○ STRUCTURE D - ○ STRUCTURE E Select the structure that correlates with the key features and characteristic peaks of the IR spectrum provided.

**Select the structure that best fits the IR spectrum.** The given image includes five different chemical structures labeled A, B, C, D, and E. Below these structures is an infrared (IR) spectrum graph. ### Structures: - **Structure A**: Features a carbonyl group (C=O) bonded to an alkyne group. - **Structure B**: Includes a carbonyl group adjacent to a methyl group on a benzene ring. - **Structure C**: Contains a carbonyl group with an adjacent ethyl group on a benzene ring. - **Structure D**: Shows a benzene ring bonded to a primary alcohol group. - **Structure E**: Has a carbonyl group bonded to an ethyl group. ### IR Spectrum Graph Explanation: - **X-axis (Wavenumber cm⁻¹)**: Ranges from 4000 to 600 cm⁻¹ and indicates the frequency of vibration. - **Y-axis (% Transmittance)**: Shows the percentage of transmittance as a function of the wavenumber. - **Key Peaks**: - A broad peak near 3400 cm⁻¹, likely indicating an O-H stretch, suggesting an alcohol. - Sharp peaks around 1700 cm⁻¹ suggesting C=O stretching. - Various C-H stretching peaks in the 3000-2850 cm⁻¹ range. ### Options: - ○ STRUCTURE A - ○ STRUCTURE B - ○ STRUCTURE C - ○ STRUCTURE D - ○ STRUCTURE E Select the structure that correlates with the key features and characteristic peaks of the IR spectrum provided.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Select the structure that best fits the IR spectrum.** The given image includes five different chemical structures labeled A, B, C, D, and E. Below these structures is an infrared (IR) spectrum graph. ### Structures: - **Structure A**: Features a carbonyl group (C=O) bonded to an alkyne group. - **Structure B**: Includes a carbonyl group adjacent to a methyl group on a benzene ring. - **Structure C**: Contains a carbonyl group with an adjacent ethyl group on a benzene ring. - **Structure D**: Shows a benzene ring bonded to a primary alcohol group. - **Structure E**: Has a carbonyl group bonded to an ethyl group. ### IR Spectrum Graph Explanation: - **X-axis (Wavenumber cm⁻¹)**: Ranges from 4000 to 600 cm⁻¹ and indicates the frequency of vibration. - **Y-axis (% Transmittance)**: Shows the percentage of transmittance as a function of the wavenumber. - **Key Peaks**: - A broad peak near 3400 cm⁻¹, likely indicating an O-H stretch, suggesting an alcohol. - Sharp peaks around 1700 cm⁻¹ suggesting C=O stretching. - Various C-H stretching peaks in the 3000-2850 cm⁻¹ range. ### Options: - ○ STRUCTURE A - ○ STRUCTURE B - ○ STRUCTURE C - ○ STRUCTURE D - ○ STRUCTURE E Select the structure that correlates with the key features and characteristic peaks of the IR spectrum provided.
Transcribed Image Text:**Select the structure that best fits the IR spectrum.** The given image includes five different chemical structures labeled A, B, C, D, and E. Below these structures is an infrared (IR) spectrum graph. ### Structures: - **Structure A**: Features a carbonyl group (C=O) bonded to an alkyne group. - **Structure B**: Includes a carbonyl group adjacent to a methyl group on a benzene ring. - **Structure C**: Contains a carbonyl group with an adjacent ethyl group on a benzene ring. - **Structure D**: Shows a benzene ring bonded to a primary alcohol group. - **Structure E**: Has a carbonyl group bonded to an ethyl group. ### IR Spectrum Graph Explanation: - **X-axis (Wavenumber cm⁻¹)**: Ranges from 4000 to 600 cm⁻¹ and indicates the frequency of vibration. - **Y-axis (% Transmittance)**: Shows the percentage of transmittance as a function of the wavenumber. - **Key Peaks**: - A broad peak near 3400 cm⁻¹, likely indicating an O-H stretch, suggesting an alcohol. - Sharp peaks around 1700 cm⁻¹ suggesting C=O stretching. - Various C-H stretching peaks in the 3000-2850 cm⁻¹ range. ### Options: - ○ STRUCTURE A - ○ STRUCTURE B - ○ STRUCTURE C - ○ STRUCTURE D - ○ STRUCTURE E Select the structure that correlates with the key features and characteristic peaks of the IR spectrum provided.
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