Question 1

Which of the following correctly identifies the functional group present in the molecule with the condensed formula $$CH_3CH_2OCH_3$$?

Accepted Answer

Ether

Question 2

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

Accepted Answer

A shorter bond length generally corresponds to a stronger bond.

Question 3

What is the IUPAC name for the following structure?

$$CH_3CH_2CH_2Br$$

Accepted Answer

1-Bromopropane

Question 4

Which of the following molecules is chiral?

Accepted Answer

2-Butanol ($$CH_3CH(OH)CH_2CH_3)$$

Question 5

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 6

Which of the following best describes an exergonic reaction?

Accepted Answer

$$\Delta G is $$negative and the reaction is spontaneous.

Question 7

Which change will NOT increase the rate of a chemical reaction?

Accepted Answer

Decreasing the temperature

Question 8

A reaction in which two molecules combine to form a larger molecule with the loss of a small molecule (such as water) is called:

Accepted Answer

Condensation

Question 9

Which of the following is a reducing sugar?

Accepted Answer

Glucose

Question 10

Which of the following best describes the difference between amylose and cellulose?

Accepted Answer

Amylose has $$\alpha(1 \rightarrow 4)$$ glycosidic bonds, while cellulose has $$\beta(1 \rightarrow 4)$$ glycosidic bonds.

Question 11

Which of the following is the correct classification for a sugar with the formula $$C_6H_{12}O_6$ and a ketone functional group?

Accepted Answer

Hexose ketose

Question 12

Which of the following best describes the anomeric carbon in a cyclic monosaccharide?

Accepted Answer

It is the carbon that was the carbonyl carbon in the Fischer projection and becomes bonded to two oxygens in the ring.

Question 13

Which of the following best explains why humans cannot digest cellulose?

Accepted Answer

Humans lack the enzyme to hydrolyze $$\beta(1 \rightarrow 4)$$ glycosidic bonds.

Question 14

Which of the following is a correct statement about the universal donor blood type?

Accepted Answer

Type O blood is the universal donor because its oligosaccharide antigens are absent.

Question 15

A gas sample is compressed from 2.0 L to 1.0 L at constant temperature. According to Boyle’s Law, what happens to the pressure?

Accepted Answer

It doubles

Question 16

Which of the following is a structural isomer of butane ($$C_4H_{10}$$)?

Accepted Answer

2-Methylpropane

Question 17

Which of the following best describes a primary alcohol?

Accepted Answer

The carbon bonded to the $$-OH$$ group is attached to only one other carbon.

Question 18

Which of the following is an example of a redox reaction in organic chemistry?

Accepted Answer

Oxidation of a primary alcohol to an aldehyde

Question 19

Which of the following best describes the difference between cis and trans isomers in alkenes?

Accepted Answer

Cis isomers have substituents on the same side of the double bond, while trans isomers have them on opposite sides.

Question 20

Which of the following best describes the process by which two monosaccharides form a disaccharide?

Accepted Answer

Condensation reaction forming a glycosidic bond

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

Study Guide - Practice Questions