TMS is often selected as the reference in NMR experiments because of the followi
ID: 500243 • Letter: T
Question
TMS is often selected as the reference in NMR experiments because of the following reasons except _____ a) All 12 nuclei of its hydrogens are equivalent, so it shows only one sharp NMR signal, which serves as a reference point. b) Its hydrogen signals appear at higher field than do most^1 H signals in other organic compounds, thus making it easy to identify the TMS peak. c) TMS is inert, so it does not react with most organic compounds, and it is low boiling and can be removed easily at the end of a measurement. d) TMS molecular structure is simple and symmetric, and it doesn't absorb in the radio-frequency region.Explanation / Answer
Option is D
If shows only one sharp NMR signal
Its hydrogen signals appear at higher field than do most 1H signals in other organic compounds, thus making it easy to identify the TMS peak.
TMS is largely inert and is not likely to react with most smaples.
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