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Quiz 1
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During acetylation of glucose it needs ,v moles of.acetic anhydride. The value of x would be
0%
3
0%
5
0%
4
0%
1
Explanation
5
On oxidation with a mild oxidising agent like Br
0%
saccharic acid
0%
glucaric acid
0%
gluconic acid
0%
valeric acid
Explanation
gluconic acid
Invert sugar is
0%
a type of cane sugar
0%
optically inactive form of sugar
0%
mixture of glucose and galactose
0%
mixture of glucose and fructose in equimolar quantities
Explanation
mixture of glucose and fructose in equimolar quantities
Which of the following compounds is found abundatly in nature?
0%
Fructose
0%
Starch
0%
Glucose
0%
Cellulose
Explanation
Starch or (d) Cellulose
Glycosidic linkage is an
0%
amide linkage
0%
ester linkage
0%
ether linkage
0%
acetyl linkage
Explanation
ether linkage
Starch is composed of two polysaccharides which arc
0%
amylopectin and glycogen
0%
amylose and gtycogen
0%
amylose (20%) and amylopectin (80%)
0%
cellulose and glycogen
Explanation
amylose (20%) and amylopectin (80%)
Maltose is made up of
0%
two α-D-glucose
0%
normal β-D-glucose
0%
α- and β-D-glucose
0%
fructose
Explanation
two α-D-glucose
Whicn of the following is an example of an aldopentose?
0%
D-Ribose
0%
Glyceraldehyde
0%
Fructose
0%
Erythrose
Explanation
D-Ribose
Which of the following treatment will convert starch directly into glucose?
0%
Heating with dilute H
0%
Fermentation by diastase
0%
Fermentation by zymase
0%
Heating with dilute NaOH
Explanation
Heating with dilute H
The a-and p-forms of glucose are
0%
isomers of D (+) glucose and L (-) glucose respectively
0%
diastereomers of glucose
0%
anomers of glucose
0%
isomers which differ in the configuration of C-2
Explanation
anomers of glucose
What are the hydrolysis products of sucrose?
0%
Fructose + Fructose
0%
Glucose + Glucose
0%
Glucose + Galactose
0%
D-Glucose + D-Fructose
Explanation
D-Glucose + D-Fructose
Carbohydrates are stored in human body as the polysaccharide
0%
starch
0%
glycogen
0%
cellulose
0%
amylose
Explanation
glycogen
The conversion of maltose into glucose is possible by the enzyme
0%
zymase
0%
lactase
0%
maltase
0%
diastase
Explanation
maltase
Which of the following is a non-reducing sugar?
0%
Glucose
0%
Sucrose
0%
Maltose
0%
Lactose
Explanation
Sucrose
Which one of the following is not correct?
0%
D(-) Fructose exist sin furanose structure
0%
D (+) Glucose exists in pyranose structure
0%
In sucrose the two monosaccharides are held together by peptide linkage
0%
Maltose is a reducing sugar
Explanation
In sucrose the two monosaccharides are held together by peptide linkage
In cellulose, D-glucose units are joined by
0%
α-1, 4 glycosidic linkage
0%
β-1, 6 glycosidic linkage
0%
β-1, 4 glycosidic linkage
0%
peptide linkage
Explanation
β-1, 4 glycosidic linkage
The anomeric carbon in D (+) glucose is
0%
C-1 carbon
0%
C-2 carbon
0%
C-5 carbon
0%
C-6 carbon
Explanation
C-1 carbon
Glucose
0%
hexanoic acid
0%
gluconic acid
0%
saccharic acid
0%
bromohexane
Explanation
gluconic acid
How many C-atoms are there is a pyranose ring?
0%
3
0%
5
0%
6
0%
7
Explanation
6
Cellulose is a
0%
hexapolysaccharide
0%
pentapolysaccharide
0%
tripolysaccharide
0%
None of these
Explanation
None of these
0 h : 0 m : 1 s
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