Carbon-13 NMR

Carbon-13 NMR Quiz

Spec 19B · Edexcel A-Level Chemistry: Quiz

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5 questions, one answer each

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  1. 1. How many peaks are in the 13C NMR spectrum of 2-methylpropane, (CH₃)₃CH?

    • A. 1
    • B. 2
    • C. 3
    • D. 4

  2. 2. Which carbon in propanal, CH₃CH₂CHO, gives the peak at the highest chemical shift?

    • A. The CH₃ carbon
    • B. The CH₂ carbon
    • C. They are all the same
    • D. The CHO carbon

  3. 3. How many peaks does 1,4-dimethylbenzene give?

    • A. 1
    • B. 2
    • C. 3
    • D. 5

  4. 4. Why is the C–O carbon in ethanol at a higher shift than the CH₃ carbon?

    • A. Oxygen is electronegative and deshields the carbon it is bonded to
    • B. The C–O carbon has more protons
    • C. The CH₃ carbon is bonded to oxygen
    • D. Oxygen increases the electron density on the carbon

  5. 5. A compound C₃H₆O gives two peaks, at δ 30 and δ 206. Which compound is it?

    • A. Propanal
    • B. Propanone
    • C. Propan-1-ol
    • D. Methyl ethanoate

Quiz