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Answered step-by-stepAsked by JudgeSquirrelMaster110 on coursehero.com
Can someone help me answer these pls? . Take Quiz Exit Question...
Can someone help me answer these pls?
Image transcription text
'Il Take Quiz Exit l: Question 4 4 pts Taking into account that only one of the
rings (cycle 2) of the compound shown
spontaneously opens up in water, indicate
if the following tests will be positive or
negative. If positive, indicate exactly what
the positive test looks like. Hint: See the
handout notes about the structural
features that result in a positive test. HOCH2 HOCHZ HOCH2 HOCHZ
o o H H20 0 OH H
OH OH 4" OH OH
O
OH 0 OH OH O
OH OH OH OH
Cycle 1 Cycle 2 Cycle 1 Open chain 1. Molisch test. 2. Benedict's test. lC 12pt V Paragraph V B I
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4 words </ >
. . .
Question 3
4 pts
Indicate if the following tests will be
positive or negative. If positive, indicate
exactly what the positive test looks like
and also indicate the approximate time for
a positive test to appear.
HOCH2
.O
HO
HO
CH2OH
OH
a. Benedict's test
b. Seliwanoff's test
& v
T 2 v
V
V
Da V
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Question 5
4 pts
CH2OH
CH,OH
CH,OH
-O
O
O
OH
OH
OH
OH
OH
OH
HO
OH
1200
The compound above is composed by
over 1000 repeating sugar units
connected as shown.
Indicate if the following tests will be
positive or negative. If positive, indicate
exactly what the positive test looks like.
a. Molisch test
b. lodine test
12pt V Paragraph B I U
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Question 6
6 pts
Indicate if the statements are true or false.
a. D-Glucose and D-galactose are isomers
b. D-Glucose and D-galactose can form a
disaccharide
c. One D-glucose and one D-galactose
will form maltose
d. D-Glucose can give a positive
Benedict's test but a negative Barfoed's
test
e. D-Galactose will give a cherry-red color
in a Seliwanoff's test
f. D-Glucose and D-galactose are ketoses
12pt V Paragraph B I U
Answer & Explanation
Solved by verified expertAnswered by suchichem.157 on coursehero.com
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