Biomolecules Test

Result

Biomolecules Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Carbohydrates Which taste sweet are called

A
Saccharides

B
Saccharides and sugars.

C
Sugars

D
aldehydes and ketones

Solution

Carbohydrates like monosaccharides (one sugar molecule, example: Glucose) and disaccharides (two sugar molecule,example Sucrose I.e Table sugar) always tastes sweet.
Question 2
1 / -0

What is the most abundant organic compound on earth?

A
Starch

B
Fructose

C
Glucose

D
Cellulose

Solution

Glucose is probably the most abundant organic compound on earth. It is the monomer of many of the larger carbohydrates, namely starch, cellulose
Question 3
1 / -0

The polymer(s) of dextrose is

A
Cellulose and Starch

B
Fructose

C
Glucose

D
Maltose

Solution

Monosaccharides (such as Glucose/dextrose) are building blocks of disaccharides (such as sucrose and lactose) and polysaccharides (such as Cellulose and Starch).
Question 4
1 / -0

Oxime is formed by treating glucose with

A
nitric acid

B
bromine water

C
Water

D
hydroxylamine

Solution

Glucose reacts with hydroxylamine (NH₂OH) to form an oxime. Oxime is formed by combination of carbonyl group of glucose and hydroxyl group of hydroxyl amine.
Question 5
1 / -0

Acetylation of glucose yields

A
N Methylbenzamide

B
glucose pentaacetate

C
p – toluenesulphonyl chloride

D
oxime

Solution

Acetylation of glucose with acetic anhydride gives glucose pentaacetate which confirms the presence of five –OH groups. Since it exists as a stable compound, five –OH groups should be attached to different carbon atoms.