Proton NMR Quiz
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5 questions, one answer each
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1. A CH₂ group is next to a CH₃ group only. What is the splitting pattern of the CH₂ peak?
- A. Singlet
- B. Doublet
- C. Triplet
- D. Quartet
2. How many peaks are there in the 1H NMR spectrum of propanone, CH₃COCH₃?
- A. 1
- B. 2
- C. 3
- D. 6
3. A compound C₄H₈O₂ gives three peaks in the area ratio 3 : 3 : 2. How many protons are responsible for the smallest peak?
- A. 1
- B. 2
- C. 3
- D. 8
4. What is the splitting pattern of the CH₃ peak in chloroethane, CH₃CH₂Cl?
- A. Singlet
- B. Doublet
- C. Triplet
- D. Quartet
5. Which type of proton gives a peak at 9.4–10.0 ppm?
- A. Alkyl CH₃
- B. CH₂ next to C=O
- C. Proton on a benzene ring
- D. Aldehyde CHO