CHEM125Name:
Test 3-ASSN:
Ms. A. Dupre
Fall 2003
Multiple Choice:(39 pts total; 3 pts each)Choose the correct answer for each of the following questions. Write the letter clearly in the blank next to the numbers.
1. Which of the following molecules is considered to be an ester?
a. CH3CH2OCH2CH2CH3 b. CH2=CHCH2CH2CH2OH
c. d.
2. Which of the following molecules is phenol?
a. b.c.d.
3. How many 1o carbons are present in the following molecule?
a. 4b. 6c. 7d. 8
4. Which of the following classes of compounds will NOT react with K2Cr2O7?
a. 1o alcoholb. aldehydec. 2o alcohold. ketone
5. What is a triose?
a. propaneb. a cyclic alkane
c. a complex carbohydrated. a simple sugar
6. What is the expected product of a reaction between a ketone and an alcohol?
a. carboxylic acidb. hemiacetalc. hemiketald. aldehyde
7. Which of the following molecules will react with NaOH?
a.b.c.d. none of the above
8. Which of the following molecules is pyrimidine?
a.b.c.d.
9. How many carbon atoms are present in the following molecule:
a. 5b. 8c. 6d. 7
10. Which of the following is an isopropyl group?
a. b.
c. d.
11. Which of the following compounds is an acetal?
a. CH3CH2OCH2CH2CH3b.
c. d.
12. The reaction which involves an amide reacting to form a carboxylic acid and an amine is called:
a. hydrogenationb. hydrolysisc. esterificationd. halogenation
13. The sugar D-ribose is considered to be a:
a. ketoseb. aldosec. triosed. polysaccaride
Short Answers: (61 pts total)Provide the correct answer to each of the following questions. Partial credit will be awarded, so show all of your work.
1. Give the IUPAC names for the following molecules (3 pts. each)
a. b.
c.
2. Draw the molecules described by the following IUPAC names (3pts each)
a.m-propylbenzaldehydeb. 3-iodopropanoic acid
c. 2-ethyl-1-phenyl-1-butanol
3. Circle ALL of the carbon chiral centers in the molecule below (2 pts. each)
4. The sugar glucose can exist as L or D when in the straight chain form. Is the representation of glucose below L- or D- glucose? (3 pts)
Can the glucose molecule as it is drawn above be utilized by your body for energy? Why? (1 pts)
5. The cyclic form of glucose can have either an alpha or beta form. Identify the correct form of the cyclic glucose below. (3 pts)
______
6. Draw two of the possible isomers of pentane. (4pts)
7.Give an example of an amide. (3 pts.)
8. The reactions below are missing a product, reactant, or a reagent. Fill in the missing data to make the reaction read correctly. Below each reaction is a question concerning it. Answer the question in the space provided. (5pts each = 3 pts each reaction + 2 pts each question)
a.
The name of the product is: ______
b.
Is this product cis or trans? ______
c.
Is the startingalcohol 1o, 2o, or 3o?______
d.
What is this type of reaction called?______