How many moles of acetic anhydride (Ac2O) is needed to react completely with tartaric acid, ribose, and glucose respectively?
(1) 2,4, 5
(2) 2, 3, 4
(3) 4, 5, 6
(4) 4, 5, 5
Glucose on reduction with Na/Hg and water gives-
1. Sorbitol
2. Fructose
3. Saccharic acid
4. Gluconic acid
What will be product when glycine, is heated–
(1) | |
(2) | |
(3) | |
(4) |
O
ll
NH2-CH-C-NH-CH2-CO2H
l
CH3
Identify the amino acid obtained by hydrolysis of the above compound :-
1. Glycine
2. Alanine
3. Both (1) and (2)
4. None of the above
At iso-electric point:
(1) conc. of cation is equal to conc of anion
(2) Net charge is zero.
(3) Maximum conc. of di-polar ion (Zwitterion) will be present
(4) All of the above
Which of the following amino acid has the lowest iso-electric point?
1. Glycine
2. Alanine
3. Aspartic acid
4. Lysine
Find iso-electric point of given amino acid
pKa = 2.2 pKb = 4.4
(1) 3.3
(2) 5.9
(3) 9.6
(4) 11.8
Find an iso-electric point of the given amino acid
1. 5.5
2. 6.5
3. 3
4. 5
Product (B) of given reaction is:
(1) Glycine
(2) Alanine
(3) valine
(4) Leucine
Which amino acid does not contain a chiral center?
1. Valine
2. Leucine
3. Glycine
4. Iso-leucine