Which of the Following Statements About Allylic Bromination Using NBS

question 38

Multiple Choice

Which of the following statements about allylic bromination using NBS is false?

• A)Molecular bromine concentration must be low.
• B)Allylic rearrangements may occur.
• C)HBr is required in trace amounts.
• D)Symmetrical alkenes are the most suitable substrates for the reaction to avoid mixtures of products.
• E)Bromine radical is produced by homolytic cleavage of the N-Br bond in N-bromosuccinimide.

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Definitions:

Standard Deviations

A measure of the amount of variation or dispersion of a set of values, indicating how much individual data points differ from the mean.

Normal Curve

A bell-shaped curve showing the usual frequency distribution of values of measured human traits and other natural phenomena.

Test-retest Reliability

A measure of consistency in the results of a test administered to the same individuals at two different points in time.

Normal Curve

A symmetrical, bell-shaped curve that describes the distribution of many types of data where most of the data points are close to the mean.