Glycoside Formation

Q.

The linkage between the two monosaccharide units in lactose

1. 
   

2. 
   

3. 
   

4. 
   

Q. Best method for preparation of
by williamson's ether synthesis is

1. 
2. 
3. 
4. 

Q.

Which test is able to tell the difference between Glucose and Fructose?

Q.

Assertion (A) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q.

Name the linkage connecting monosaccharide units in polysaccharides.

Q.

Which monosaccharide units are present in starch, cellulose and glucose and which linkages link these units?

Q. The compound which forms only acetaldehyde upon Ozonolysis is

1. Propyne
2. But – 1 – ene
3. But – 2 – ene
4. Ethene

Q. Treatment of D-glucose with aqueous $NaOH$ results in a mixture of monosaccharides, which are

1. 
2. 
3. 
4. 

Q. No of atoms in 64 amu of He is

Q.

Which of the following pairs represents anomers?

Q. The total number meso form compounds in the given compound?

1. 1
2. 2
3. 3
4. 4

Q.

The linkage between the two monosaccharide units in lactose

1. 

2. 

3. 

4. 

Q.

What are glycosidic linkages? In which type of biomolecules are they present?

Q.

Why does compound (A) given below not form an oxime?

Q. Which of the following reactions glucose does not give?

1. oxidation Reaction with $HN{O}_3$
2. Reaction with Red P+HI
3. Reaction with $B{r}_2$ water
4. Addition product with $NaHS{O}_3$
   

Q. Glycoside linkage is an:

1. Acetal linkage
2. Ether linkage
3. Ester linkage
4. Amide linkage

Q. Glycosidic linkage is present in:

1. sucrose
2. starch
3. glucose
4. fructose

Q. What are branched and unbranched and difference between alpha linkage beta linkage?

Q.

The correct statement(s) is (are)

1. 
   P is a D glucose
2. Q is 2-hydroxy-benzylalcohol
3. Q can be converted to a modern analgesic (pain killer), aspirin
4. The above reaction occurs through a carbocation

Q. The Glycosidic linkage present in sucrose is between:

1. C-$1$ of $\alpha$- glucose and C-$2$ of $\beta$-fructose
2. C-$1$ of $\beta$-galactose and C-$4$ of $\alpha$-glucose
3. C-$1$ of $\alpha$-glucose and C-$4$ of $\beta$- fructose
4. C-$1$ of $\alpha$-glucose and C-$4$ of $\alpha$-glucose

Q. Terylene - During polymerisation simple molecule is released.

Q. When the $-OH$ group at anomeric carbon lies on the same side as that of the $-OH$ group on $C_3$ carbon, it is known as______

1. $\alpha$-D-glucose
2. $\beta$-D-glucose
3. $\beta$-L-glucose
4. $\alpha$-L-glucose

Q. In polysaccharides the linkage connecting monosaccharide units is called

1. Glycoside linkage
2. Nucleoside linkage
3. Glycogen linkage
4. Peptide linkage

Q. A disaccharide may contain different types of monosaccharide units.

1. True
2. False

Q.

Identify incorrectly matched set

1. Sucrose: C₁ of glucose is linked to C₂ of fructose
2. Maltose: C₁ of α - D - glucose is linked to C₄ of another α - D - glucose molecule
3. Cellulose: C₁ of β - D - glucose molecule is linked to C₄ of another β - D - glucose molecule
4. Lactose: C₁ of galactose is linked to C₄ of fructose

Q. ${(SiH}_3{)}_{3}N$ is a____base than ${(CH}_3{)}_{3}N$.

1. weaker
2. stronger
3. equal
4. none

Q. D-(+)-glucose reacts with hydroxyl amine and yield an oxime. The structure of the oxime would be:

1. 
2. 
3. 
4. 

Q. The glycosidic linkage involved in linking the glucose units in amylose part of starch is:

1. $C_1-C_4-\alpha$ linkage
2. $C_1-C_4-\beta$ linkage
3. $C_1-C_6-\alpha$ linkage
4. $C_1-C_6-\beta$ linkage

Q.

In polysaccharides, the linkage connecting monosaccharide is called:

1. glycosidic linkage

2. peptide linkage

3. nucleosidic linkage

4. glycogen linkage

Q. Which will form two oximes with $N{H}_{2}OH$?

1. $HCHO$
2. $C{H}_{3}COC{H}_{2}C{H}_3$
3. $C{H}_{3}CHO$
4. $C{H}_{3}COC{H}_{2}C{H}_{2}C{H}_2$