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chapter 13 - 1 Which of the following isomeric...

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1. Which of the following isomeric dibromopropanes has only a single peak in itsproton NMR spectrum? A. 1,1-dibromopropane B. 1,3-dibromopropane C. 1,2-dibromopropane D.2,2-dibromopropane 2. How many different types(sets) of hydrogens are there in 2,2-dimethylpentane? 3. Which of the following has only a single peak in its proton NMR spectrum? 4. A compound is either cyclononane or cyclodecane. Which of the following is the mostuseful technique in identifying the compound? 5. Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. (CH3)4C B. (CH3)3N C. (CH3)2O D.CH3F 6. Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? 7. How many different sets of equivalent protons are there for para-xylene (1,4-dimethylbenzene)? 8. How many different sets of equivalent protons are there in the following compound?
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9. What is the multiplicity of the methylene hydrogens indicated in the proton NMR of the following compound? A. doublet B. triplet C. quartet D.pentet 10. What is the multiplicity of the methylene hydrogens indicated in the proton NMR of the following compound?
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