Search Your Topic
Multiple choice questions- Chemistry of carbohydrates- Revision- Set-2
Q.1- Which of the following is not a disaccharide?
a) Hyaluronic acid
b) Maltose
c) Lactose
d) Sucrose
Q.2- What is the molecular formula of Glucose?
a) CH3OH
b) C12H22O11
c) C6H1206
d) C6H12O5
Q.3-Sucrose is composed of which two sugars?
a) Glucose and Glucose
b) Glucose and Fructose
c) Glucose and Galactose
d) Fructose and Galactose
Q.4- In which of the following forms Glucose is stored in plants?
a) Starch
b) Dextrins
c) Glycogen
d) Cellulose
Q.5-Which out of the following is a carbohydrate with no nutritional value?
a) Glycogen
b) Starch
c) Dextrin
d) Cellulose
Q.6- Choose a sugar out of the following that is non- reactive to Seliwanoff reagent?
a) Sucrose
b) Fructose
c) Inulin
d) Ribose
Q.7- Choose a keto triose-
a) Glyceraldehyde
b) Dihydroxyacetone
c) Erythrose
d) Arabinose
Q.8- A pentose sugar present in the heart muscle is-
a) Xylose
b) Xylulose
c) Lyxose
d) Aldose
Q.9- d -Glucose and l- Glucose are-
a) Stereoisomers
b) Anomers
c) Keto- Aldose Isomers
d) Optical isomers
Q.10- All the following tests are positive for Lactose except-
a) Benedict
b) Barfoed
c) Molisch
d) Osazone
Q.11- Glucose can have — isomers due to the presence of 4 asymmetric carbon atoms-
a) 4
b) 2
c) 12
d) 16
Q.12- Fructose and Ribulose are-
a) Epimers
b) Anomers
c) Ketoses
d) Ketose- Aldose isomers
Q.13- The compounds having the same structural formula but differing in configuration around one carbon atom are called-
a) Optical isomers
b) Anomers
c) Stereoisomers
d) Epimers
Q.14- What does the following equation represent?
α-D Glucose +112ο→+52.5 ο → +19 ο β- D glucose
a) Stereoisomerism
b) Optical isomerism
c) Mutarotation
d) Epimerization
Q.15- The carbohydrate of honey is
a) Fucose
b) Maltose
c) Lactose
d) Fructose
Q.16- Mannonic acid is a-
a) Sugar acid
b) Deoxy sugar
c) Amino sugar
d) Sugar alcohol
Q.17- Which of the following is not a monosaccharide with 5 carbon atoms?
a) Arabinose
b) Trehalose
c) Xylulose
d) Ribulose
Q.18- Which of the following gives a brown color on reaction with iodine?
a) Starch
b) Glycogen
c) Dextrin
d) Cellulose
Q.19-Invert sugar is-
a) Starch
b) Fructose
c) Glucose
d) Hydrolytic product of Sucrose
Q.20- Which out of the following is a structural homopolysaccharide?
a) Hyaluronic acid
b) Chitin
c) Inulin
d) Starch
Key to Answers
1) -a, 2)-c, 3)-b, 4)-a, 5) -d, 6)- d, 7)- b, 8)-c, 9)-d, 10)- b,11) -d, 12)-c, 13)-d, 14)- c,15)-d, 16)-a,17)-b, 18)- b, 19)- d, 20)- b.