Which of the Following Best Describes Measures of Center

question 53

Multiple Choice

Which of the following best describes measures of center?

• A) They are numbers around which observations tend to cluster and that describe the location of what in some sense might be called the center of a data set.
• B) They are numbers that indicate the spread or scatter of observations and show the extent to which individual values in a data set differ from one another and, hence, differ from their central location.
• C) They are numbers that indicate the degree of asymmetry in a frequency distribution.
• D) None of these.
• E) All of these.

Describe the limitations and advantages of Friedel-Crafts alkylation and acylation reactions.

Apply knowledge of organic synthesis to design synthetic routes for complex molecules starting from simple precursors such as benzene.

Understand the concept and application of nucleophilic aromatic substitution reactions.

Explain the directing effects of functional groups in electrophilic aromatic substitution reactions.

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Definitions:

Dimethylamine

Dimethylamine is a simple amine consisting of two methyl groups attached to a nitrogen atom, used in a wide range of chemical applications, including as a precursor for certain chemicals.

3-pentanone

An organic compound characterized by a five-carbon chain with a ketone functional group at the third carbon atom.

Enamine

Derivatives of alkenes formed from the reaction between a secondary amine and a carbonyl group, often used as intermediates in organic synthesis.

Imine

A functional group or compound featuring a carbon-nitrogen double bond, often formed by the condensation of an aldehyde or ketone with an amine.