Chapter 13 Multiple-choice questions

Reaction mechanisms: the chemical changes that drive the chemistry of life
. A two-step reaction features how many transition states?

. A one-step reaction has how many intermediates?

. Which is the most likely leaving group when a nucleophile attacks this molecule?

. An SN2 reaction (a type of substitution reaction) proceeds in one step. True or false?

. This reaction:
CH2CH2 + HBr → CH3CH2Br
is an example of what kind of chemical reaction?

. Which one of the following best describes this reaction?

. During condensation, two molecules become joined together (for example, the joining of two amino acids to form a peptide). But what is the name given to the reverse of this process?

. During the final step in glycolysis, enolpyruvate is converted to pyruvate as shown below. Is enolpyruvate a cis/trans isomer of pyruvate?

. The majority of ATP generated from the oxidation of glucose in our bodies occurs during glycolysis. True or false?

. During a two-step reaction, which one of the following species has the highest energy?

. Which of the following structures correctly shows the most likely product of the reaction of methanol with propanone?

. The following structures depict a hemiacetal and a hemiketal. But which way round are the structures?

. The following structure depicts what class of compound?

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