Question 1

Which of the following best describes a condensation reaction in organic chemistry?

Accepted Answer

A reaction where two smaller molecules combine to form a larger molecule, releasing water.

Question 2

Which functional groups are involved in the formation of an ester during a condensation reaction?

Accepted Answer

Carboxylic acid and alcohol

Question 3

What is the principal product when ethyl acetate undergoes acid-catalyzed hydrolysis?

Accepted Answer

Acetic acid and ethanol

Question 4

Which enzyme catalyzes the hydrolysis of phosphate groups from organic molecules?

Accepted Answer

Phosphatase

Question 5

What is the result of the complete hydrogenation of an alkene in the presence of a platinum catalyst?

Accepted Answer

An alkane

Question 6

Which of the following best describes the hydrolysis of a triacylglycerol?

Accepted Answer

It forms three fatty acids and one glycerol molecule.

Question 7

Which of the following is true about Markovnikov’s Rule in the hydration of alkenes?

Accepted Answer

The hydrogen atom adds to the less substituted carbon, and the hydroxyl group adds to the more substituted carbon.

Question 8

Which of the following reactions is an example of a hydrolysis reaction?

Accepted Answer

$$\mathrm{CH_3COOC_2H_5} + \mathrm{H_2O} \xrightarrow{H^+} \mathrm{CH_3COOH} + \mathrm{C_2H_5OH}$$

Question 9

Which of the following best describes the industrial process of partial hydrogenation of unsaturated fats?

Accepted Answer

It can result in the formation of trans fats due to incomplete hydrogenation.

Question 10

What is the major product when propene ($$\mathrm{CH_3CH=CH_2$}) $$reacts with water in the presence of acid?

Accepted Answer

$$\mathrm{CH_3CH(OH)CH_3$} (2-$$propanol)

Question 11

Which of the following statements about hydrolyzable and nonhydrolyzable lipids is correct?

Accepted Answer

Hydrolyzable lipids can be broken down into smaller molecules by reaction with water.

Question 12

Which of the following is the correct balanced equation for the hydrolysis of acetic anhydride?

Accepted Answer

$$\mathrm{CH_3COOCCH_3} + \mathrm{H_2O} \rightarrow 2\ \mathrm{CH_3COOH}$$

Question 13

Which of the following best describes the role of kinases in cellular metabolism?

Accepted Answer

They catalyze the condensation (addition) of phosphate groups to molecules.

Question 14

Which of the following is a correct example of an addition reaction to an alkene?

Accepted Answer

$$\mathrm{CH_2$=CH_2$} + \mathrm{H_2$} \rightarrow \mathrm{CH_3CH_3}$$

Question 15

Which of the following is the correct product when ethylene reacts with HCl?

Accepted Answer

$$\mathrm{CH_3CH_2Cl} ($$chloroethane)

Question 16

Which of the following best explains why the addition of HBr to methylcyclohexene follows Markovnikov’s Rule?

Accepted Answer

The H adds to the less substituted carbon, resulting in the Br attaching to the more substituted carbon.

Organic Reactions: Condensation, Hydrolysis, and Addition Reactions

Study Guide - Practice Questions