Which of the Following Is Not True of ¹³C NMR

question 12

Multiple Choice

Which of the following is not true of ¹³C NMR?

• A) The sensitivity of ¹³C NMR is much less than that of proton NMR.
• B) By simultaneously decoupling the proton region,¹³C peaks appear as singlets.
• C) (¹³C chemical shifts cover a much larger range than do ¹H chemical shifts.)
• D) The ¹³C NMR spectrum can show more peaks than there are carbons in the molecular formula.
• E) The ¹³C NMR spectrum will show one peak for each type of carbon in a molecule.

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Definitions:

Conservation of Number

A cognitive ability in child development in which the child understands that changing the arrangement of objects does not change the number of objects.

A-not-B Tasks

A cognitive test used to assess the understanding of object permanence in infants, involving hiding an object in one location (A) and then a different location (B) and observing where the infant searches for it.

Goal-driven

Motivated or guided by the desire to achieve specific outcomes or objectives.

Understanding of Minds

The ability to attribute mental states—beliefs, intents, desires, emotions—to oneself and others.