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Which of the following is diprotic (dioic) acid?
A) ketovaleric acid
B) acetoacetic acid
C) glyoxalic acid
D) oxalolacetic acid
Which of the following fatty acids corresponds to A9.12.15 -all cis, 18:3?
A) palmitoleic
B) arachidonic
C) linoleic
D) linolenic
Ceramides are:
A) primary amines
B) esters
C) primary amides
D) secondary amides
A (cell) membrane phospho-glycero-lipid may contain glycerol residue and...
A) Residues of sn-1: phosphoric acid, sn-2: fatty acid, sn-3: fatty acid
B) Residues of sn-1: fatty acid, sn-2: fatty acid, sn-3: phosphoric acid alcohol
C) Residues of sn-1: hydroxyl, sn-2: fatty acid, sn-3: saccharide and amino
D) Residues of sn-1: fatty acid, sn-2: phosphoric acid, sn-3: saccharide
Which of the following is the major product of nucleophilic addition-elimination reaction of an acyl chloride with a primary alcohol?
OA) acyl anhydride
OB) carboxylic acid
OC) ester
D) amide
Without consulting pK,/pK, tables, find the weakest base among the heterocyclic compounds
given below.
A) pyridine
B) imidazole
C) pyrimidine
D) pyrrole
How many moles of H₂ are required for for hydrogenation of oleic acid to stearic acid?
A) 1
B) 2
C) 3
D) 4
Which of the following is the valid IUPAC name for a-ketobutyric acid?
OA) 2-oxobutanedioic acid
OB) 3-oxobutanoic acid
C) 2-oxopentanoic acid
D) 2-oxobutanoic acid
Which of the following statements represents the CORRECT type of bonding in the following compounds? (1) CH3OH ; ionic bonding (2) CH3CH2CH2Br ; polar covalent bonding (3) H-F ; ionic bonding (4) CH3CH2OK ; covalent bonding
🔹BOILING POINT AND FREEZING POINT OF SOLUTION
1. a solution is made of 2.00g sucrose in 100.00 g H2O. (Molecular weight of sucrose is 342 g/mol). Calculate the (a) Boiling point and (b) freezing point of the solution
🔸OSMOTIC PRESSURE
1. What is the osmotic pressure of a solution made up of 2.00g sucrose (C12H22O11) in 100mL of solution at 30°C?
