Organic Chemistry ❮ 277
- Cycloalkanes are hydrocarbons with the general
formula CnH2n. If a 14 g sample of any alkene is
combusted in excess oxygen, how many moles of
water will form?
(A) 14 moles
(B) 2.0 moles
(C) 1.0 mole
(D) 28 moles
2. CH 3 CH CH 2
OH
CH 3
The organic compound shown above would be
classified as:
(A) an organic base
(B) an ether
(C) an alcohol
(D) an aldehyde
3. HO C CH 2
O
CH 3
The above compound would be classified as:
(A) an aldehyde
(B) a ketone
(C) an ester
(D) a carboxylic acid
- Which of the following compounds is optically
active?
(A) CH 3 CHClCH 2 CH 2 CH 3
(B) CH 3 CH=CHCH 2 CH 3
(C) CH 3 CH 2 CHClCH 2 CH 3
(D) CH 3 CH 2 CH 2 CH 2 OH - A carboxylic acid may be represented as:
(A) ROH
(B) RCHO
(C) R-O-R
(D) RCOOH - Which of the following compounds will give the
highest pH when dissolved in water?
(A) CH 3 CHO
(B) CH 3 OH
(C) HCHO 2
(D) CH 3 NH 2 - When naming branched alkanes, be sure to consider the branches when finding the longest
carbon chain. The longest chain isn’t always the one in which the carbon atoms all lie in a
horizontal line. - In naming identical substituents on the longest carbon chain, be sure to use repeating
location numbers, separated by commas (2,2-dimethyl). - Be sure that every carbon has four bonds!
❯ Review Questions
Use these questions to review the content of this chapter and improve your understanding
of chemistry. Although organic chemistry won’t specifically be tested on the exam, this
section contains questions of the same types as those found on the AP exam. First are 10
multiple-choice questions. Following those is a long free-response question. Time yourself
following the instructions provided to practice pacing yourself.
Multiple-Choice Questions
Answer the following questions in 15 minutes. You may not use a calculator. You may use
the periodic table and the equation sheet at the back of this book.