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