Exhibit 21-3 Consider the Reaction Below to Answer the Following Question(s)

question 31

Multiple Choice

Exhibit 21-3
Consider the reaction below to answer the following question(s) :
-Refer to Exhibit 21-3.The purpose of the base catalyst in this reaction is:

• A)to polarize the carbonyl group to make it more electrophilic
• B)to convert the ester to an intermediate carboxylic acid
• C)to convert the alcohol group to an alkoxide anion,which is a better nucleophile
• D)all of the above

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Definitions:

Random Variable

A random variable is a variable whose values depend on outcomes of a random phenomenon.

Standard Normal Probability Distribution

A probability distribution that has a mean of 0 and a standard deviation of 1, used in statistics to represent standardized values of a dataset.

Z-statistic

A statistical measure that represents the number of standard deviations a data point is from the mean of a data set.

Probabilities

Measuring how likely it is for an event to occur, using a numeric scale that falls between 0 and 1.