**Title: Identifying Molecules with a Singlet ¹H NMR Splitting Pattern****Instructions:**Select all molecules with a "singlet" ¹H NMR splitting pattern for the indicated hydrogen.**Molecules:**- **A:** Two hydrogens on a strained four-membered ring, adjacent to a carbonyl group.- **B:** A cyclic ester (lactone) with one hydrogen indicated, adjacent to an oxygen atom.- **C:** A cyclic structure with a methyl group; one hydrogen is highlighted.- **D:** Another cyclic structure with an isolated hydrogen, adjacent to a carbonyl group.**Options:**- [ ] B- [ ] A- [ ] D- [ ] C**Note:**A handwritten note reads: "More than one can be picked."**Explanation:**This exercise involves analyzing the chemical environment of hydrogens in different molecular structures to determine which hydrogens will present a singlet pattern in a ¹H NMR spectrum. A singlet occurs when the hydrogen is not coupled to any neighboring hydrogens.

For singlet splitting pattern, there are no neighbouring hydrogens for indicated proton.

Answered: Select all molecules with a "singlet"…

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Select all molecules with a "singlet" ¹H NMR splitting pattern for the indicated hydrogen. & XX B D

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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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

**Title: Identifying Molecules with a Singlet ¹H NMR Splitting Pattern**

**Instructions:**
Select all molecules with a "singlet" ¹H NMR splitting pattern for the indicated hydrogen.

**Molecules:**

- **A:** Two hydrogens on a strained four-membered ring, adjacent to a carbonyl group.
- **B:** A cyclic ester (lactone) with one hydrogen indicated, adjacent to an oxygen atom.
- **C:** A cyclic structure with a methyl group; one hydrogen is highlighted.
- **D:** Another cyclic structure with an isolated hydrogen, adjacent to a carbonyl group.

**Options:**

- [ ] B
- [ ] A
- [ ] D
- [ ] C

**Note:**
A handwritten note reads: "More than one can be picked."

**Explanation:**
This exercise involves analyzing the chemical environment of hydrogens in different molecular structures to determine which hydrogens will present a singlet pattern in a ¹H NMR spectrum. A singlet occurs when the hydrogen is not coupled to any neighboring hydrogens.

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