Question 1

Which of the following best describes the concept of hybridization in organic molecules?

Accepted Answer

Hybridization is the process by which atomic orbitals mix to form new orbitals suitable for the pairing of electrons to form chemical bonds.

Question 2

Which of the following molecules has a tetrahedral geometry due to $$sp^3$$ hybridization?

Accepted Answer

Methane ($$CH_4)$$

Question 3

A student is asked to draw the Lewis structure for ethene ($$C_2H_4). $$Which of the following statements is correct regarding the bonding in ethene?

Accepted Answer

Each carbon atom in ethene is $$sp^2$$ hybridized and forms a double bond with the other carbon.

Question 4

Which of the following is the correct condensed structural formula for propane?

Accepted Answer

$$CH_3CH_2CH_3$$

Question 5

Which of the following statements about resonance structures is TRUE?

Accepted Answer

Resonance structures represent different possible arrangements of electrons, not atoms, in a molecule.

Question 6

Which of the following is the correct IUPAC name for the compound with the formula $$CH_3CH_2CH_2OH$$?

Accepted Answer

1-Propanol

Question 7

A patient is exposed to carbon monoxide ($$CO) $$poisoning. Which property of $$CO$$ makes it dangerous in biological systems?

Accepted Answer

$$CO$$ binds to hemoglobin more strongly than $$O_2$$, preventing oxygen transport.

Question 8

Which of the following is the correct electron configuration for a carbon atom in its ground state?

Accepted Answer

$$1s^2$$\ $$2s^2$$\ $$2p^2$$

Question 9

Which of the following best explains why alkanes are generally unreactive?

Accepted Answer

Alkanes have strong $$\sigma$$ bonds and lack functional groups that can participate in chemical reactions.

Question 10

Which of the following molecules is expected to have the highest boiling point?

Accepted Answer

1-Butanol ($$CH_3CH_2CH_2CH_2OH)$$

Question 11

Which of the following is a correct statement about the difference between $$\sigma$$ and $$\pi$$ bonds?

Accepted Answer

$$\sigma$$ bonds result from head-on overlap of orbitals, while $$\pi$$ bonds result from side-to-side overlap.

Question 12

Which of the following is the correct formula for the alkene with three carbon atoms?

Accepted Answer

$$C_3H_6$$

Question 13

A molecule has the formula $$C_2H_2. $$What type of bond is present between the two carbon atoms?

Accepted Answer

A triple bond

Question 14

Which of the following is the correct order of increasing acidity for the following compounds: ethanol, acetic acid, water?

Accepted Answer

Ethanol \u003c Water \u003c Acetic acid

Question 15

Which of the following is a correct statement about isomers?

Accepted Answer

Isomers have the same molecular formula but different structural arrangements.

Question 16

Which of the following is the correct formula for the carboxylic acid functional group?

Accepted Answer

$$-COOH$$

Question 17

Which of the following statements about the structure of benzene is correct?

Accepted Answer

Benzene has a planar ring structure with delocalized $$\pi$$ electrons.

Question 18

Which of the following is the correct general formula for alkanes?

Accepted Answer

$$C_nH_{2n+2}$$

Question 19

A student mixes 1-butanol and acetic acid in the presence of sulfuric acid. Which type of reaction is most likely to occur?

Accepted Answer

Esterification

Question 20

Which of the following is the correct structure for the aldehyde functional group?

Accepted Answer

$$-CHO$$

Organic Chemistry I: Course Schedule and Assessment Overview (Ch. 1–3)

Study Guide - Practice Questions