When sucrose is heated with conc. HNO3, the product formed is
Sucrose nitrate
adipic acid
oxalic acid
citric acid
Glucose on reaction with fehling solution gives
cupric oxide
cuprous oxide
saccharic acid
Both ( b ) and ( c )
Glucose and mannose are
epimers
anomers
ketohexoses
disaccharide
Which of the following does not exhibit the phenomenon of mutarotation?
( - ) fructose
( + ) sucrose
( + ) lactose
( + ) maltose
Which of the following is a trisaccharide?
Stachyrose
Sucrose
Raffinose
Ribose
Give the pOH range for the isoelectric point of the amphoteric ion of an amino acid
5.5 to 6.3
2.5 to 5.0
7.7 to 8.5
9.0 to 10.7
The functional group which is found in amino acid is
—COOH
—NH2
—CH3
Both a and b
The reagent which forms crystalline osazone derivative when reacted with glucose is
fehling solution
phenyl hydrazine
Benedict solution
hydroxyl amine
The monomer units of starch are
α- glucose
β- glucose
pyranose
galactose
In alkaline medium, alanine exists predominantly as
anion
Zwitter ion
cation
covalent form
