Download Exam 2 from 2006 - Department of Chemistry | Oregon State University

Chemistry 130
Exam 2
Spring 2006
May 25, 2006
Oregon State University
Dr. Richard Nafshun
Fill in the front page of the Scantron answer sheet with your last name, first name, middle initial, and
student identification number. Leave the class section number and the test form number blank.
This exam consists of 15 multiple-choice questions. Each multiple-choice question has five points
associated with it. Select the best multiple-choice answer by filling in the corresponding circle on the
rear page of the answer sheet.
OH
1.
(A)
(B)
(C)
(D)
(E)
is:
a primary alcohol
a secondary alcohol
a primary amine
a secondary amine
a ketal
O
O
2.
is:
(A)
(B)
(C)
(D)
(E)
a primary alcohol
a secondary alcohol
a primary amine
an ester
a ketal
O
C
3.
H
(A)
(B)
(C)
(D)
(E)
H is oxidized to:
HCOOH
CH4
CO4
CO8
a ketal
4.
One reason for this process is:
(A)
(B)
(C)
(D)
(E)
5.
to produce a carbohydrate
to produce a salt that has a higher boiling point than the reactant amine
to produce a ketal
to produce an amino acid
to produce a fat
The structure of Corticosterone is shown below (Corticosterone is a member of a class of steroid
hormones that are produced in the adrenal cortex. These are involved in a wide range of
physiologic systems such as stress response, immune response and regulation of inflammation,
carbohydrate metabolism, protein catabolism, blood electrolyte levels, and behavior.)
Corticosterone DOES NOT contain:
(A)
(B)
(C)
(D)
an alcohol group
an alkene group
a ketone group
an ether group
6.
The pH of a sample of tap water was measured to be 5.4. The sample is:
(A)
(B)
(C)
7.
acidic
basic
neutral
The structure of glucose is shown below.
Glucose is:
(A)
(B)
(C)
(D)
(E)
8.
an aldohexose
an aldopentose
an aldoheptose
a ketopentose
a ketohexose
The charge (oxidation number) of carbon in formaldehyde is:
(A)
(B)
(C)
(D)
(E)
0
+2
+4
-2
-4
9.
is:
(A)
(B)
10.
contains:
(A)
(B)
(C)
(D)
(E)
11.
D-xylulose
L-xylulose
no chiral carbons
one chiral carbon
two chiral carbons
three chiral carbons
five chiral carbons
Which of the following is an example of secondary structure?
(A)
(B)
(C)
(D)
(E)
Phe-Phe-Tyr-Tyr-Ser-Ser
alpha helix
asparagine
aldohexose
CH3CH2COOH
12.
Enzymes can be damaged by:
(A)
(B)
(C)
(D)
(E)
change in pH
heavy metals
heat
soaps and detergents
all of the above
13. Methyl salicylate (the compound you synthesized in lab that smells like wintergreen) contains:
(A)
(B)
(C)
(D)
(E)
an alcohol and a ketone.
an alcohol and an ether.
an alcohol and an ester.
an alcohol and an amide.
an alcohol and an aldehyde.
.
14.
Which pair of compounds can react to form a hemiacetal?
(A)
(B)
(C)
(D)
(E)
15.
CH3CH2CHO and CH3CH2OH.
CH3COCH3 and CH3CH2CHO.
CH3CH2CHO and CH3COOH.
CH3COCH3 and CH3COOH.
CH3COOH and CH3CH2OH.
True or false; His-Lys-Arg is the same as Arg-Lys-His
(A)
(B)
True
False