Fructose reduces Tollen's reagent due to:

1.	Primary alcoholic group
2.	Secondary alcoholic group
3.	Enolisation of fructose followed by conversion to aldehyde by base
4.	Asymmetric carbon

The correct statements regarding "Denaturation" are:

1. (a), (b) and (c)
2. (b) and (c)
3. (a) and (c)
4. (a) and (b)

$\alpha$-D-glucose and β-D-glucose are:

1. Epimers

2. Anomers

3. Functional isomers

4. Chain isomers

The structure that represents the peptide chain is:

1.
2.
3.
4.

Deficiency of which vitamin causes osteomalacia ?

The reaction of concentrated sulphuric acid with carbohydrates (C₁₂H₂₂O₁₁) is an example of:
1. Dehydration
2. Oxidation
3. Reduction
4. Sulphonation

Reducing sugars are -

α-helix structure of proteins is stabilized by :

Amino acids exhibit amphoteric behavior as:

1. They can act both as an acid and as a base.

2. They can act only as an acid but not as a base.

3. They can act only as a base but not an acid.

4. None of the above.

Monosaccharides are: