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Biotechnology and Biomedical Engineering
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Biochemistry Virtual Lab I
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Qualitative Analysis of Carbohydrates
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Qualitative Analysis of Carbohydrates
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Theory
Procedure
Self Evaluation
Animation
Assignment
Reference
Feedback
NPTEL Video
1)
What will be the reaction product of Xylose undergoing Bial’s test?
Blue colour condensation product
Bluish green colour condensation product
A muddy brown colour precipitate
Cherry red colouration
2)
What is the role of sulphuric acid in Molisch’s test?
Reducing agent
Dehydrating agent
Oxidant
Colour production
3)
If a sample being tested gives a positive result for Benedict’s test and Fehling's test, then what will the sample be?
Reducing sugar
Non-reducing sugar
Monosaccharide
Disaccharide
4)
Which test distinguishes between pentoses and hexoses?
Barfoed’s test
Bial’s test
Seliwanoff’s test
Iodine test
5)
In Benedict’s test, reducing sugars reduce cupric hydroxide to:
Cuprous oxide
Cupric oxide
Cuprous hydride
None of the above
6)
Out of the following the colour reaction specific for ketoses is:
Bial’s test
Seliwanoff’s test
Osazone test
Barfoed’s test
7)
Flower shaped osazone crystals are ________________.
Lactose
Glucose
Maltose
Mannose
8)
The Seliwanoff's test is answered by Sucrose.
True
False
Cite this Simulator:
vlab.amrita.edu,. (2011). Qualitative Analysis of Carbohydrates. Retrieved 29 March 2024, from vlab.amrita.edu/?sub=3&brch=63&sim=631&cnt=3
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