Question 1

Which of the following correctly identifies the functional group present in the compound with the condensed formula CH$$_3CH$_2$$COOH?

Accepted Answer

Carboxylic acid

Question 2

Which of the following molecules is a structural isomer of C$$_4H$_{10}$$?

Accepted Answer

CH$$_3CH(CH$_3)CH$_3$$

Question 3

A molecule has the following IUPAC name: 2-bromopropane. Which of the following is its correct condensed structural formula?

Accepted Answer

CH$$_3$$CHBrCH$$_3$$

Question 4

Which of the following statements about bond length and bond strength is correct?

Accepted Answer

A double bond is shorter and stronger than a single bond.

Question 5

Which of the following best describes a chiral molecule?

Accepted Answer

A molecule with at least one carbon atom bonded to four different groups

Question 6

A fatty acid is described as 18:2(Δ9,12). Which of the following statements is true?

Accepted Answer

It is a polyunsaturated fatty acid with 18 carbons and double bonds at carbons 9 and 12.

Question 7

Which of the following reactions is exothermic?

Accepted Answer

Combustion of methane in air

Question 8

A reaction has $$\Delta G = -45 kJ/$$mol. Which of the following best describes this reaction?

Accepted Answer

It is spontaneous and exergonic.

Question 9

Which of the following changes will increase the rate of a chemical reaction?

Accepted Answer

Adding a catalyst

Question 10

Which of the following is a correct example of a hydrolysis reaction?

Accepted Answer

Breaking a disaccharide into two monosaccharides using water

Question 11

Which of the following best describes the difference between an aldose and a ketose?

Accepted Answer

An aldose contains an aldehyde group; a ketose contains a ketone group.

Question 12

How many stereoisomers are possible for a hexose with 4 chiral centers?

Accepted Answer

$$2^4 = 16$

Question 13

Which of the following disaccharides is a reducing sugar?

Accepted Answer

Lactose

Question 14

Which of the following best describes the glycosidic bond in maltose?

Accepted Answer

An $$\alpha-1$$,4-glycosidic bond between two glucose units

Question 15

Which polysaccharide is the primary structural component of plant cell walls?

Accepted Answer

Cellulose

Question 16

A patient receives a blood transfusion with type AB blood. Which of the following statements is correct regarding ABO blood typing?

Accepted Answer

Type AB is the universal acceptor.

Question 17

Which of the following best describes the function of heparin in the human body?

Accepted Answer

It acts as an anticoagulant, preventing blood clotting.

Question 18

A sample of gas is at 1.00 atm and 300 K. If the temperature is increased to 600 K at constant volume, what happens to the pressure according to Gay-Lussac's Law?

Accepted Answer

The pressure increases to 2.00 atm.

Question 19

Which of the following best describes Boyle's Law?

Accepted Answer

At constant temperature, the pressure of a gas is inversely proportional to its volume.

GOB Chemistry Study Notes: Organic Compounds, Chemical Reactions, Carbohydrates, and Gas Laws

Study Guide - Practice Questions

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