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Which of the following are constituent polysaccharides of starch?
A) amylose & amylopectin
B) glycogen
C) cellulose & amylopectin
D) amylose & glycogen
Which of the following glycosidic bonds are present in the least branched component of starch?
A) 1a-6
B) 18-4
C) 1a-2B
D) 1a-4
How many chiral carbons are in fructofuranose?
A) 2
B) 3
C) 4
D) 5
Finish the reaction: C,H,OH+PC (Conditions for nucleophic substitution are optima)
A) CH,CH+H,PO
B) CH,CH+H₂PO₂
C) C₂H₂C+PCI+H₂O
D) C₂H₂CH+POCI
identify the common name of 3-axobutanoic acid.
A) glyoxylic acid
B) pyruvic acid
C) acetoacetic acid
D) formylacetic acid
Which of the following is a-, B- and y-hydroxy acid at the same time?
A) malic acid
B) citric acid
C) isocitric acid
D) lactic acid
What is the common name for the class of compounds like RRC-N-NH₂?
A) imine
B) oxime
C) hydrazone
D) hemiacetal
Which of the following disaccharides is a non-reducing sugar?
A) lactose
B) sucrose
C) cellobiose
D) maltose
Which of the following fatty acids is unsaturated?
A) palmitic acid
B) arachidonic acid
C) stearic acid
D) myristic
Which of the following is most likely to be produced by an electrophilic aromatic substitution reaction of pyrrole with acetyl chloride?
A) 2-acetyl-pyrrole
B) 3-acetyl-pyrrole
C) 2-chloro-pyrrole
D) 3-ethyl-pyrrole
