AP Chemistry: Organic Chemistry & Biochemistry 2

Question 1

Which type of reaction converts an alkene into an alkane?

Accepted Answer

Hydrogenation

Answer

Hydrogenation adds H2 across the double bond, saturating the alkene into an alkane.

Question 2

What is the IUPAC name of CH3-CH2-OH?

Accepted Answer

Ethanol

Answer

A two-carbon chain with a hydroxyl group is ethanol.

Question 3

Which functional group characterizes a carboxylic acid?

Accepted Answer

-COOH

Answer

The -COOH group, combining a carbonyl and hydroxyl, defines carboxylic acids.

Question 4

What kind of isomers have the same molecular formula but different connectivity?

Accepted Answer

Structural isomers

Answer

Structural (constitutional) isomers differ in how atoms are bonded.

Question 5

Which reagent is commonly used to oxidize a primary alcohol to a carboxylic acid?

Accepted Answer

KMnO4

Answer

Strong oxidizers like KMnO4 convert primary alcohols all the way to carboxylic acids.

AP Practice Test