Portage Learning CHEM 219 – Module 4 Exam Principles of Organic Chemistry | Questions and Answers [Verified Answers] Plus Rationales | Latest 2026/27

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Portage Learning CHEM 219 – Module 4 Exam
Principles of Organic Chemistry | Questions and
Answers [Verified Answers] Plus Rationales | Latest
2026/27


ALCOHOLS & ETHERS

1.

Alcohols contain which functional group?

A. -COOH
B. -OH
C. -NH₂
D. -CHO

Answer: B
Rationale: Alcohols are defined by the hydroxyl (-OH)
group.

2.

Ethers have the general structure:

A. R–OH
B. R–O–R

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C. R–COOH
D. R–NH₂

3.

Which alcohol is primary?

A. 3° alcohol
B. 2° alcohol
C. 1° alcohol (carbon attached to one carbon)
D. None

4.

Which alcohol is most easily oxidized?

A. Tertiary
B. Secondary
C. Primary
D. None

5.

Tertiary alcohol oxidation:

A. Forms aldehyde
B. Forms ketone

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C. Does not oxidize easily
D. Forms acid

OXIDATION & REDUCTION

6.

Oxidation involves:

A. Gain of hydrogen
B. Loss of electrons / gain of oxygen
C. Gain of electrons
D. No change

7.

Reduction involves:

A. Loss of electrons
B. Gain of electrons / hydrogen
C. Gain of oxygen
D. No change

8.

Primary alcohol oxidation forms:

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A. Ketone
B. Aldehyde → carboxylic acid (further oxidation)
C. Ether
D. Alkane

9.

Secondary alcohol oxidation forms:

A. Aldehyde
B. Ketone
C. Acid
D. Ether

10.

Common oxidizing agents include:

A. H₂
B. PCC, KMnO₄
C. NaCl
D. CH₄

CARBONYL COMPOUNDS

11.