Carbohydrates
Carbohydrates: Overview
This topic covers concepts, such as, Importance of Carbohydrates, Biochemistry, Properties of Monosaccharides: Osazone Formation & Oxidation of Monosaccharides by Tollen's and Fehling Reagent etc.
Important Questions on Carbohydrates
The simplest carbohydrates which cannot be hydrolysed to smaller molecules are known as

Which of the following carbohydrate is a reducing sugar?

Which of the following reactions and facts of D-glucose cannot be explained by its open chain structure?
(i) Despite having the aldehyde group, glucose does not give Schiff test and 2, 4-DNP test.
(ii) Glucose does not react with sodium hydrogen sulphite to form addition product.
(iii) The pentaacetate of glucose does not react with hydroxyl amine showing the absence of free-CHO group.

The Glycosidic linkages and Peptide linkages are present in:


The optically active tartaric acid is named as tartaric acid because it has a positive

Giving '' Symbol for true statement and '' symbol for false statement, select correct option.
(i) Most naturally occurring amino acids have L-configuration
(ii) ribose sugar is present in
(iii) Amylose is water insoluble component made up of glucose units
(iv) All monosaccharides are non-reducing sugars.

The reagent used as Tollen's reagent for the detection of sucrose is _____.

The result obtained in Fehling's test for the detection of glucose is _____.

How will you differentiate sucrose from glucose?




Which of the following statements are true about carbohydrates?
Monosaccharides can be hydrolysed.
The two monosaccharide units obtained on hydrolysis of a disaccharide can either be same or different.
Polysaccharides are not sweet in taste.
All monosaccharides are not reducing sugars.

Synthesis of each molecule of glucose in photosynthesis involves

Among the following, the incorrect statement is

A disaccharide consisting of two glucose units in which of one glucose is linked to of another glucose unit is

Glycogen is branched chain polymer of glucose units in which chain is formed by glycosidic linkage where branching occurs by formation of glycosidic linkage. Structure of glycogen is similar to


The corresponding order of names of four aldoses with configuration given below, respectively is:
