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Chemistry MCQ Question - Macromolecules
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1. The distinction test for primary secondary and tertiary alcohol required to react each of them is
Cone. HCI and anhydrous SOCl2
Cone. HCI and anhydrous CaCl2
Cone. HCI and anhydrous PCl2
Cone. HCI and anhydrous ZnCl2
2. Which compound is also known by the name of carbolic acid?
C2H2OH
H2CO3
C6H5OH
H3PO3
3. The given dissociation constant (Ka) value 1.3x10-10 is of
Alcohol
Acetic acid
Water
Phenol
4. Heating phenol with Zn will yield
Benzene
Benzoic acid
Phenoxide
Cyclohexane
5. When phenol is heated with concentrated nitric acid the product is
Picric acid
o-nitrophenol
1 3 5 -trinitro benzene
p-nitrophenol
6. Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is
oxidation
elimination
condensation polymerization
additional polymertization
7. Which compound shows hydrogen bonding?
C2H6
C2H5Cl
CH3OCH3
C2H5OH
8. Ethanol can be converted into ethanoic acid by
Hydrogenation
Hydration
Oxidation
Fermentation
9. Methyl alcohol is not used
As a solvent
As an antifreezing agent
As a substitute for petrol
For denaturing of ethyl alcohol
10. Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate?
Primary alcohol
Secondary alcohol
Tertiary alcohol
All of above
11. Methanol can be obtained from
water gas
destructive distillation of wood
methane
all
12. An alcohol which can be prepared by fermentation is
CH3OH
C3H7OH
CH3 - CH2 - OH
C6H5OH
13. Absolute alcohol is obtained when rectified spirit is treated with
Ca(OH)2
CaCO3
CaCl2
CaO
14. When alcohol reacts with phosphorous halides it geive
alkyl halides
alkyl amine
alkanes
alkynes
15. Phenol was isolated by Runge from
vegetable oil
coaltar
wood
none of these
16. Which one of the following compound does not have - OH group
ethylene glycol
glycerol
picric acid
ethyl acetate
17. The hydrogenation of phenol in the presence of Ni and heat gives
cyclohexane
n - hexane
1 - hexanol
cyclohexanol
18. Ethers show functional group isomerism with
aldehydes
ketones
alcohols
carboxylic acid
19. Ethanol and methanol can be distinguished by a
Iodoform test
Lucas test
Benedicts test
Tollens test
20. Which one of the following alcohol has greater boiling point
ethanol
ethylene glaycol
glycerol
methanol
21. Polymers described as large molecules built up from small repeating units called
Biopolymers
Dimers
Monomers
metamers
22. A polymer in which three different monomers combine called.
Copolymer
Terpolymer
Homopolymer
Biopolymer
23. The important monomers of acryclic resins is
Vinyl chloride
Styrene
Methylmethacrylate
Hexamethylenediamine
24. Polyester resins are the product of the reaction of
Dihydric alcohol and dicarboxylic aromatic acids
Polyamines with aliphatic dicarboxylic acids
Styrene in the presence of catalyst
Epichlorohydrin with diphenylol propane
25. Industrial materials and thermal power stations are coated with
Polyester resins
Epoxy paints
Polyamide resins
Polyvinyl chloride
26. Carbohydrates are polyhydroxy compounds of
Glucose
Glyceraldehydes
Oligosaccharides
Aldehydes and ketones
27. Common example of carbohydrates are
Cellulose glycogen galactose
Glyceraldehydes glucose peptone
Glycerol phospho lipids collagen
Legumin amylopectin albumin
28. Nylon is obtained by heating
Acrylic acid
Epichlorohydrin
Vinyl chloride
Adipic acid with hexamethylene diamine
29. Hydrolysis of an oligosaccharide in the presence of acid yields
one monosaccharide unit
No monosaccharide unit
2-9 monosaccharide unit
many monosaccharide
30. Amylose is
Soluble in water
Insoluble in water
Soluble in alcohol
Partially soluble in alcohol
31. The process of polymerization was classified by
Strecker
Sabatier
Runge
W. H. Carothers
32. All proteins yield ______ upon complete hydrolysis.
Nitrogen
Amino acids
Carbon and hydrogen
Sulphur
33. Protein attached to some non protein group is called
Derived protein
Sample protein
Proteoses
Conjugated protein
34. Regular coiling or zigzagging of polypeptide through hydrogen bonding is its.
Quantum structure
Secondary structure
Tertiary structure
Primary structure
35. Orgosterol is
Orgocalciferol
Vitamin D2
Sterol
all of the above
36. Lipids are soluble in
Organic solvents
Organic and inorganic solvents
Inorganic solvents
Solubility has nothing to do with lipids
37. Animal fats are located particularly in
Skeleton tissues
Cardiac tissues
Connective tissues
Adipose tissues
38. Animal and vegetable fats are
Glycerols
Fatty acids
Triesters formed from glycerol and fatty acids
Tetraesters formed from glycerol and fatty acids
39. Lipopolysaccharides are examples of
Derived lipids
Simple lipids
Compound lipids
Not a type of lipids
40. Triglycerides are easily hydrolyzed by enzymes called
Lyases
Ligases
Lipases
Hydrolases
41. Saponification is the hydrolysis of fat or oil with an
Acid
Alkali
Enzyme and alkali
Enzyme and acid
42. Enzynies that catalyze the transfer of groups within molecule are called
Isomerases
Lyases
Transferases
Ligases
43. Enzymes from the same organism which catalyze same reaction but are chemically and physically distinct from each other are called
Oxidoreductases
Hydrolases
Isoenzymes
Isomerases
44. Rate of enzymatic reaction is directly proportional to the concentration of
Enzyme
Substrate
Enzyme and substrate
Enzyme and product
45. Enzyme proved useful in cancer treatment is
Lactic dehydrogenase
Alkaline phosphatase
L-asparaginase
Cellulase
46. Purines and pyrimidines are
Enzymes
Nitrogenous bases
Carbohydrates
Lipids
47. Nucleic acids were first demonstrated in
Pus cells
Sperm heads
1872
all of the above
48. Nucleic acids direct the synthesis of
Glucose
Triglycerides
Proteins
All
49. The mechanism by which the genetic information can be duplicated is called
Duplication
Transcription
Replication
Mutation
50. The nitrogenous base different in RNA as compared to DNA is
Cytosine
Thymine
Adenine
Guanine
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