Among the following non-reducing sugar is :
(1) Glucose
(2) Fructose
(3) Sucrose
(4) Galactose
When glucose is reacted with phenylhydrazine then osazone is formed. In this reaction how many phenyl hydrazine molecules are used?
1. 1
2. 2
3. 3
4. 4
Sucrose on treatement with conc. HCl produces:-
(1) Glucose
(2) Fructose
(3) Glucose + Fructose
(4) Maltose
Which type of amino acid is lysine ?
1. b - Amino acid
2. Acidic
3. Basic
4. Neutral
The above process in which a and b form remain in equilibrium with acyclic form and a change in optical rotation is observed which is called as–
(1) Mutarotation
(2) Epimerisation
(3) Condensation
(4) Inversion
At iso-electric point:
(a) conc. of cation is equal to conc of anion
(b) Net charge is zero.
(c) Maximum conc. of di-polar ion (Zwitterion) will be present
(d) All of the above
Which amino acid does not contain chiral centre ?
(1) Valine
(2) Leucine
(3) Glycine
(4) Iso-leucine
Which of the following pair gives same phenyl osazone ?
(a) D-Glucose and D-Allose
(b) D-Glucose and D-Alfrose
(c) D-Glucose and D-Mannose
(d) D-Glucose and D-Talose
Proteins mainly contain:
(1) C, H, O and N
(2) Only C and H
(3) C, H and O
(4) N and H
The main structural feature of protein is:
(1) The ester linkage
(2) The ether linkage
(3) The peptide linkage
(4) All of these