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100 questions with answersProvisional keyKannada   Date of Test : 22-05-2023

Assistant Professor in Pharmacy - Medical Education question paper 2023

Date of test
22-05-2023
Question paper code
34/2023/OL
Category No.
561/2017
Questions
100
Answer key
Provisional Answer Key
Exam mode
Online (computer based)

Provisional key. Kerala PSC can change answers after reviewing complaints; the final key decides the marks.

Source: Kerala PSC (keralapsc.gov.in) · official document· Last updated 25 Sept 2026· How we check content

Official PDFs

As published by the Kerala Public Service Commission.

All 100 questions with answers

Tap an option to check yourself, or open the answer. Answers follow the official Kerala PSC answer key.

  1. 1.
    Modified Brontrager's test in Aloe is performed due to the presence of
    Show answer and explanation
    Answer: B —
    C-glycoside
    Modified Bornträger's test is used to detect C-glycosides present in Aloe.
  2. 2.
    The crude drug used as an anti hypertensive
    Show answer and explanation
    Answer: D —
    Catechu
    Catechu and certain other drugs have specific uses, though antihypertensive properties are associated in specific contexts.
  3. 3.
    The parameter of growth for assessing the relative contribution of cell aggregates and free cells to growth in culture medium is
    Show answer and explanation
    Answer: C —
    Mitotic index
    Mitotic index is used to assess the relative contribution of cell aggregates and free cells to growth.
  4. 4.
    Indian liquorice is the other name of
    Show answer and explanation
    Answer: B —
    Abrus precatorius
    Abrus precatorius is commonly known as Indian liquorice.
  5. 5.
    The gene transfer method which is not suitable for protoplasts
    Show answer and explanation
    Answer: A —
    Biolistic method
    Biolistic method is generally not suitable for protoplasts due to high shear forces.
  6. 6.
    Cycloeudesmol an antibiotic substance is isolated from
    Show answer and explanation
    Answer: D —
    Red algae
    Cycloeudesmol is isolated from red algae.
  7. 7.
    Ash value is used to detect the following except
    Show answer and explanation
    Answer: C —
    Decomposed products
    Ash values help identify adulteration, low grade products, exhausted drugs, and excess earthy matter.
  8. 8.
    Forskolin, used in treatment of cardiomyopathy is a
    Show answer and explanation
    Answer: A —
    Diterpene
    Forskolin is a labdane diterpene.
  9. 9.
    Formation of lignin compounds is by
    Show answer and explanation
    Answer: C —
    Shikimic acid pathway
    Lignin compounds are synthesized via the shikimic acid pathway.
  10. 10.
    The plant growth regulator which act as selective weedicide or herbicide in high concentrations
    Show answer and explanation
    Answer: B —
    Auxins
    Auxins act as selective weedicides/herbicides at high concentrations (e.g., 2,4-D).
  11. 11.
    Who is proved existence of receptors ?
    Show answer and explanation
    Answer: B —
    James Langly
    Question cancelled in the final key.
  12. 12.
    Lysosomes are unit membrane bound organelles that contain
    Show answer and explanation
    Answer: C —
    Acid hydrolase
    Lysosomes contain acid hydrolases enzymes.
  13. 13.
    The most primitive cell in erythropoiesis
    Show answer and explanation
    Answer: A —
    Pluripotent stem cell
    Pluripotent stem cell is the most primitive cell giving rise to all blood cells including erythrocytes.
  14. 14.
    Which vitamin is needed for synthesis of collagen, the main bone protein ?
    Show answer and explanation
    Answer: A —
    Vitamin C
    Vitamin C is essential for the hydroxylation of proline and lysine in collagen synthesis.
  15. 15.
    Which of the following is inhibitory neuro transmitter ?
    Show answer and explanation
    Answer: D —
    Glycine
    Question cancelled in the final key.
  16. 16.
    At the point where the trachea divides in to right and left primary bronchi, an internal ridge called
    Show answer and explanation
    Answer: B —
    Carina
    The internal ridge at the tracheal bifurcation is called the carina.
  17. 17.
    Oestrogen act on
    Show answer and explanation
    Answer: C —
    Nuclear receptor
    Estrogen acts via intracellular nuclear receptors.
  18. 18.
    T ype I anaphylactic reactions, anaphylaxis is mediated by
    Show answer and explanation
    Answer: C —
    IgE antibodies
    Type I hypersensitivity reactions are mediated by IgE antibodies.
  19. 19.
    The position of Dose response curve, on the dose axis is the index of
    Show answer and explanation
    Answer: D —
    Drug potency
    Potency is indicated by the position of the dose-response curve along the dose axis.
  20. 20.
    Drug which undergoes enterohepatic cycling
    Show answer and explanation
    Answer: C —
    Oral contraceptives
    Oral contraceptives undergo enterohepatic circulation.
  21. 21.
    Name the partial agonist effective for smoking cessation.
    Show answer and explanation
    Answer: C —
    Verenicline
    Varenicline is a partial agonist of the α4β2\alpha_4\beta_2 nicotinic acetylcholine receptor used for smoking cessation.
  22. 22.
    Benzodiazepine antagonist
    Show answer and explanation
    Answer: D —
    Flumazenil
    Flumazenil is a competitive antagonist at the benzodiazepine binding site on the GABAAGABA_A receptor.
  23. 23.
    Teicoplanin belongs to
    Show answer and explanation
    Answer: D —
    Glycopeptides
    Teicoplanin is a glycopeptide antibiotic similar to vancomycin.
  24. 24.
    Name one luminal amoebicide
    Show answer and explanation
    Answer: A —
    Diloxanide furoate
    Diloxanide furoate acts in the lumen of the bowel as an amoebicide.
  25. 25.
    Azole antifungal agent active against Mucor mycosis
    Show answer and explanation
    Answer: B —
    Posaconazole
    Posaconazole is active against mucormycosis among the azole antifungals.
  26. 26.
    Selective adrenoceptor antagonists
    Show answer and explanation
    Answer: D —
    Tamsulosin
    Tamsulosin is a selective α1A\alpha_{1A} adrenoceptor antagonist.
  27. 27.
    A macrolide antibiotic with significant activity against Mycobacterium leprae
    Show answer and explanation
    Answer: C —
    Clarithromycin
    Clarithromycin has demonstrated significant activity against Mycobacterium leprae.
  28. 28.
    Purine antimetabolite with cytotoxic and immunosuppressant action
    Show answer and explanation
    Answer: A —
    Azathioprine
    Azathioprine is a purine antimetabolite widely used as an immunosuppressant.
  29. 29.
    Aminoglycoside antibiotic having resistance to bacterial aminoglycoside modifying enzyme
    Show answer and explanation
    Answer: D —
    Amikacin
    Amikacin is structurally modified to resist many aminoglycoside-inactivating enzymes.
  30. 30.
    Raltegravir is
    Show answer and explanation
    Answer: B —
    Integrase inhibitor
    Raltegravir is an HIV integrase strand transfer inhibitor.
  31. 31.
    In XYZ classification for inventory control the drugs are categorized on their
    Show answer and explanation
    Answer: A —
    High, low and intermediate inventory values
    XYZ analysis categorizes inventory based on the inventory value (high, medium, low value).
  32. 32.
    Which method is a useful tool in overall analysis of cost volume relationship in charging policy ?
    Show answer and explanation
    Answer: C —
    Break-even point pricing
    Break-even point pricing is used to determine the point where total revenue equals total costs, helping in cost-volume analysis.
  33. 33.
    LDH3 the enzyme mainly concentrated in which tissue ?
    Show answer and explanation
    Answer: B —
    Lungs
    LDH3 isoenzyme is primarily found in the lungs.
  34. 34.
    Pramlintide belongs to which class of drug ?
    Show answer and explanation
    Answer: A —
    Amylin analogue
    Pramlintide is a synthetic analogue of the hormone amylin used in diabetes management.
  35. 35.
    Trachoma is caused by which organism ?
    Show answer and explanation
    Answer: D —
    Chlamydia trachomatis
    Trachoma is an infectious eye disease caused by the bacterium Chlamydia trachomatis.
  36. 36.
    One step dry chemistry method can be used to measure
    Show answer and explanation
    Answer: A —
    Concentration of drugs in the body
    Dry chemistry methods are often used for rapid point-of-care testing, including drug concentration monitoring.
  37. 37.
    Name the place where the first drug information centre is established.
    Show answer and explanation
    Answer: B —
    University of Kentucky
    The first drug information center was established at the University of Kentucky in 1962.
  38. 38.
    What does Urea breath test for ?
    Show answer and explanation
    Answer: D —
    To examine the presence of H. Pylori
    The urea breath test is a diagnostic test used to detect the presence of Helicobacter pylori in the stomach.
  39. 39.
    Anti-CCP is the biological Marker for which disease ?
    Show answer and explanation
    Answer: D —
    Rheumatoid Arthritis
    Anti-cyclic citrullinated peptide (Anti-CCP) antibodies are highly specific markers for Rheumatoid Arthritis.
  40. 40.
    Which is the method used for sterilization of thermo labile powders ?
    Show answer and explanation
    Answer: A —
    Gaseous sterilization
    Gaseous sterilization (e.g., Ethylene oxide) is suitable for heat-sensitive (thermo-labile) materials.
  41. 41.
    In gradient elution technique
    Show answer and explanation
    Answer: B —
    Two solvents that are completely miscible in each other and with different dielectric constant is used
    Gradient elution involves changing the composition of the mobile phase over time to improve separation.
  42. 42.
    The absorption maxima of 1, 4-dimethylcyohex-1, 3-diene using Woodward-Fieser rule is
    Show answer and explanation
    Answer: A —
    273 nm
    Based on Woodward-Fieser rules for dienes, the calculated value is 273 nm.
  43. 43.
    Ferroin indicator is
    Show answer and explanation
    Answer: B —
    Orthophenanthroline-ferrous complex
    Ferroin is the complex of 1,10-phenanthroline with ferrous ions.
  44. 44.
    In infrared spectroscopy, for preparing solid samples, the solid sample is mixed with Nujol to a thick paste in
    Show answer and explanation
    Answer: B —
    Mull technique
    The mull technique involves grinding the sample with a mulling agent like Nujol to create a paste.
  45. 45.
    Which of the following statement is false about Mohr's method of titration ?
    Show answer and explanation
    Answer: B —
    The solution to be titrated should be acidic
    Mohr's method must be performed at a neutral or slightly alkaline pH (6.5-9.0) because chromate ions react in acidic conditions.
  46. 46.
    Ilkovic equation gives the relationship between
    Show answer and explanation
    Answer: B —
    Diffusion current vs concentration
    The Ilkovic equation relates the diffusion current to the concentration of the electroactive species in polarography.
  47. 47.
    Give the relative areas of multiplets of methylene protons in the proton NMR spectra of
    Show answer and explanation
    Answer: B —
    1 : 3 : 3 : 1
    The relative intensities of multiplets follow Pascal's triangle; for a quartet (n=3), it is 1:3:3:1.
  48. 48.
    The molecular ion peak of methylene chloride in the mass spectrum will be at the m/z value
    Show answer and explanation
    Answer: A —
    84
    Methylene chloride (CH2Cl2CH_2Cl_2) has a molecular weight of approximately 12+2+(35.5×2)=8512 + 2 + (35.5 \times 2) = 85. The peak at 84/86 corresponds to the isotopes of chlorine.
  49. 49.
    Fourier transform NMR instruments records
    Show answer and explanation
    Answer: B —
    Free induction decay signal
    FT-NMR records the Free Induction Decay (FID) signal, which is then converted to a spectrum via Fourier transform.
  50. 50.
    If the organic samples are contaminated with water and oxides of nitrogen and sulphur, the detector of choice in gas chromatography is
    Show answer and explanation
    Answer: A —
    Flame ionization detector
    Flame Ionization Detector (FID) is highly sensitive to hydrocarbons and is generally unaffected by water and common inorganic gases.
  51. 51.
    The co-enzyme not involved in hydrogen transfer
    Show answer and explanation
    Answer: D —
    FH4
    FH4 (Tetrahydrofolate) is primarily involved in one-carbon unit transfer, not hydrogen transfer.
  52. 52.
    Recombinant enzyme used for the treatment of Pompe disease is
    Show answer and explanation
    Answer: A —
    α\alpha-glucosidase
    Pompe disease is treated with enzyme replacement therapy using recombinant human α\alpha-glucosidase.
  53. 53.
    Example of Amino acid containing thioether group
    Show answer and explanation
    Answer: B —
    Methionine
    Methionine contains a thioether group in its side chain.
  54. 54.
    Isomerism exhibited by unsaturated fatty acids
    Show answer and explanation
    Answer: C —
    Both 1 and 2
    Unsaturated fatty acids can exhibit both geometric (cis/trans) isomerism due to double bonds and optical isomerism if chiral centers are present.
  55. 55.
    As per induced fit theory for enzyme substrate complex formation
    Show answer and explanation
    Answer: A —
    The active site is not rigid and pre-shaped
    According to the induced fit model, the active site is flexible and molds around the substrate upon binding.
  56. 56.
    Measurement of lowering of vapour pressure can be done by
    Show answer and explanation
    Answer: D —
    All the above
    All listed methods are standard techniques used to measure the lowering of vapour pressure of solutions.
  57. 57.
    Pick out the correct order of stability of carbocation relative to the substrate from which it is formed.
    Show answer and explanation
    Answer: B —
    Tertiary > Secondary > Primary
    Carbocation stability increases with alkyl substitution due to hyperconjugation and inductive effects (Tertiary > Secondary > Primary).
  58. 58.
    Cobalt labelled cyanocobalamin is used in the
    Show answer and explanation
    Answer: C —
    Both 1 and 2
    Cobalt-labeled cyanocobalamin (Vitamin B12) is used in the Schilling test for diagnosing pernicious anemia.
  59. 59.
    Which of the following statement is true about amines ?
    Show answer and explanation
    Answer: A —
    Primary amines undergo carbylamine reaction
    Only primary amines (both aliphatic and aromatic) react with chloroform and alcoholic KOH to form foul-smelling carbylamines (isocyanides).
  60. 60.
    Pyridine is less basic than aliphatic amines because the lone pair of electrons on N-atom in pyridine is in
    Show answer and explanation
    Answer: B —
    sp2sp^2 hybrid orbital
    The nitrogen atom in pyridine is sp2sp^2 hybridized, holding the lone pair in an sp2sp^2 orbital which has more s-character, holding electrons more tightly than an sp3sp^3 orbital.
  61. 61.
    Colterol is a
    Show answer and explanation
    Answer: A —
    Selective β2\beta_2-agonist
    Colterol is a selective β2\beta_2 adrenergic receptor agonist.
  62. 62.
    What happens when the substitution on the amino nitrogen in adrenergic agonists increase in size from hydrogen to methyl to isopropyl ?
    Show answer and explanation
    Answer: B —
    α\alpha receptor agonist activity decreases and β\beta-receptor agonist activity increases
    Increasing the bulk of the alkyl substituent on the amino nitrogen increases β\beta-receptor selectivity and activity while decreasing α\alpha-receptor activity.
  63. 63.
    Give an example of imidazopyridine derivative used as a hypnotic.
    Show answer and explanation
    Answer: C —
    Zolpidem
    Zolpidem is an imidazopyridine derivative widely used as a sedative-hypnotic.
  64. 64.
    The drug Meperidine should not be administered to patients receiving
    Show answer and explanation
    Answer: A —
    Monoamine oxidase (MAO) inhibitor
    Co-administration of meperidine with MAO inhibitors can lead to severe, potentially fatal reactions including serotonin syndrome.
  65. 65.
    Which of the following is an α\alpha-Glucosidase inhibitor used as hypoglycemic agent ?
    Show answer and explanation
    Answer: C —
    Both 1 and 2
    Acarbose, voglibose, and miglitol are all well-known α\alpha-glucosidase inhibitors used in diabetes management.
  66. 66.
    Hammett substituent constant
    Show answer and explanation
    Answer: D —
    All the above
    The Hammett constant (σ\sigma) quantifies the electronic (inductive and resonance) effects of substituents at meta and para positions on aromatic rings.
  67. 67.
    Which of the following is the pro-drug of pralidoxime ?
    Show answer and explanation
    Answer: A —
    Pro-2-PAM
    Pro-2-PAM is lipophilic prodrug designed to enhance the penetration of pralidoxime across the blood-brain barrier.
  68. 68.
    IUPAC name of Ketamine is
    Show answer and explanation
    Answer: A —
    2-(2-Chlorophenyl)-2-(methylamino) cyclohexanone
    Ketamine is chemically known as 2-(2-chlorophenyl)-2-(methylamino)cyclohexanone.
  69. 69.
    Synthesis of Phenytoin from benzil takes place via
    Show answer and explanation
    Answer: B —
    Benzilic acid rearrangement
    The synthesis of phenytoin from benzil and urea proceeds via a mechanism analogous to the benzilic acid rearrangement.
  70. 70.
    Example of an iminostilbene derivative used as anticovulsant
    Show answer and explanation
    Answer: A —
    Carbamazepine
    Carbamazepine is a dibenzazepine (iminostilbene) derivative widely prescribed as an anticonvulsant and mood stabilizer.
  71. 71.
    For a new drug substance intended for storage in a refrigerator, the long term stability studies as per ICH guidelines are to be conducted at a storage temperature of
    Show answer and explanation
    Answer: A —
    5±3∘C5 \pm 3^\circ C
    According to ICH guidelines, for drugs stored in a refrigerator, long-term stability testing is conducted at 5±3∘C5 \pm 3^\circ C.
  72. 72.
    Pick out the wrong statement.
    Show answer and explanation
    Answer: D —
    Different areas within a manufacturing plant requires the same SOP (Standard Operating Procedure) for cleaning
    Cleaning SOPs are area-specific and equipment-specific, not uniform across all areas of a plant.
  73. 73.
    With an increase in temperature, surface tension of water
    Show answer and explanation
    Answer: B —
    Decreases
    Surface tension generally decreases as temperature increases because the kinetic energy of molecules increases, reducing cohesive forces.
  74. 74.
    Pick out the correct statement
    Show answer and explanation
    Answer: B —
    Colloidal particles can pass through a filter paper
    Colloidal particles are small enough to pass through ordinary filter paper but are retained by semipermeable membranes.
  75. 75.
    Which among the following has the highest HLB value ?
    Show answer and explanation
    Answer: C —
    Sodium lauryl sulphate
    Sodium lauryl sulphate is an ionic surfactant with a very high HLB value (typically around 40), making it highly hydrophilic.
  76. 76.
    Which among the following can be used for the determination of viscosity of a Newtonian liquid ?
    Show answer and explanation
    Answer: D —
    All the above
    All listed viscometers can be used to measure the viscosity of Newtonian liquids.
  77. 77.
    The shelf life of a drug (assuming duration of retaining at least 90% of initial strength as shelf life) undergoing first order decomposition can be calculated using the formula
    Show answer and explanation
    Answer: B —
    0.104 divided by rate constant for decomposition
    For first-order kinetics, t90=0.105k≈0.104kt_{90} = \frac{0.105}{k} \approx \frac{0.104}{k}.
  78. 78.
    In a Fisher sub sieve sizer,
    Show answer and explanation
    Answer: C —
    Surface area of a powder is determined by air permeability method
    The Fisher sub-sieve sizer determines the average particle size of a powder based on the air permeability principle.
  79. 79.
    Who among the following is not an ex officio member of the Drugs Technical Advisory Board ?
    Show answer and explanation
    Answer: D —
    Minister of Chemicals and Fertilizers, Govt. of India
    The Minister of Chemicals and Fertilizers is not an ex officio member of the DTAB.
  80. 80.
    The chairman of Drug Enquiry Committee constituted in 1930
    Show answer and explanation
    Answer: A —
    Col. R.N. Chopra
    The Drug Enquiry Committee (1930) was chaired by Col. R.N. Chopra.
  81. 81.
    The Bacterial strain used for manufacture of BCG vaccine
    Show answer and explanation
    Answer: B —
    Attenuated live strain of Mycobacterium Bovis
    BCG vaccine is prepared from an attenuated live strain of Mycobacterium bovis.
  82. 82.
    The active ingredient present in Dettol solution
    Show answer and explanation
    Answer: A —
    Chloroxylenol
    Chloroxylenol is the primary active antiseptic ingredient in Dettol.
  83. 83.
    The pore size of millipore filter GS grade used for aseptic processing
    Show answer and explanation
    Answer: A —
    0.22±0.02μm0.22 \pm 0.02 \mu m
    GS grade Millipore filters typically have a pore size of 0.22μm0.22 \mu m, which is standard for sterile filtration.
  84. 84.
    During sterility testing, the inactivating agent used for inhibiting agents like phenol and alcohol is
    Show answer and explanation
    Answer: B —
    Dilution
    Dilution is a common method used to reduce the concentration of inhibitory substances like phenol or alcohol below their toxic levels during sterility testing.
  85. 85.
    The solvent used inside the boilable catgat tube is
    Show answer and explanation
    Answer: C —
    Toluene
    Toluene is used as the storage fluid in boilable catgut tubes to maintain the flexibility of the suture.
  86. 86.
    The first FDA approved monoclonal antibody used to treat organ transplant rejection
    Show answer and explanation
    Answer: C —
    Muromonab-CD3
    Muromonab-CD3 (Orthoclone OKT3) was the first monoclonal antibody approved by the FDA for clinical use in preventing organ transplant rejection.
  87. 87.
    Which of the following route of drug administration cannot be considered as extravascular ?
    Show answer and explanation
    Answer: C —
    Intraarterial
    Intraarterial administration is a vascular route, whereas intramuscular, subcutaneous, and sublingual are extravascular routes.
  88. 88.
    Which among the following class of drugs is having the highest apparent volume of distribution ?
    Show answer and explanation
    Answer: D —
    Amphetamines
    Amphetamines are lipophilic basic drugs that extensively distribute into tissues, resulting in a large apparent volume of distribution.
  89. 89.
    Which of the following options is showing the rate of metabolism as defined by Michaelis-Menten equation ?
    Show answer and explanation
    Answer: B —
    \frac{V_{max} \cdot C}{K_m + C}
    The Michaelis-Menten rate expression is VmaxCKm+C\frac{V_{max} C}{K_m + C}.
  90. 90.
    For drugs that are not systematically absorbed like antacids, bioequilivalence studies is carried out by
    Show answer and explanation
    Answer: A —
    A surrogate marker with pharmacodynamic effect
    For locally acting, non-absorbed drugs, pharmacodynamic endpoints or surrogate clinical markers are used.
  91. 91.
    Which one of the following dryer is known as lyophilizer ?
    Show answer and explanation
    Answer: B —
    Freeze dryer
    Freeze dryers are also known as lyophilizers.
  92. 92.
    What are the modes observed in a ball mill for size reduction ?
    Show answer and explanation
    Answer: A —
    Impact and attrition
    Ball mills reduce particle size primarily through impact (tumbling balls) and attrition (sliding/rubbing).
  93. 93.
    Which one of the distillation method is used to get sharp separation between component of the mixtures containing miscible volatile liquid having different but close boiling point ?
    Show answer and explanation
    Answer: A —
    Rectification
    Rectification (fractional distillation) provides sharp separation of miscible volatile liquids with close boiling points.
  94. 94.
    Which one of the mixing equipment used for two immiscible liquids ?
    Show answer and explanation
    Answer: C —
    Silverson mixer emulsifier
    Silverson mixer emulsifiers are high-shear mixers used for blending immiscible liquids to form emulsions.
  95. 95.
    During compression, air entrapment may lead to
    Show answer and explanation
    Answer: B —
    Capping and laminating
    Trapped air in tablet granulations during high-speed compression causes capping and lamination upon decompression.
  96. 96.
    Pyrogens are
    Show answer and explanation
    Answer: B —
    Bacterial Endotoxins
    Pharmaceutical pyrogens are principally lipopolysaccharide bacterial endotoxins from Gram-negative bacteria.
  97. 97.
    What are the characteristics of the mixed monolithic reservoir devices ?
    Show answer and explanation
    Answer: C —
    Drug polymer matrix is layered by rate controlling membrane
    In mixed monolithic reservoir systems, a drug core/matrix is enclosed by a rate-controlling polymeric membrane.
  98. 98.
    The 00 size capsules can fill the volume of
    Show answer and explanation
    Answer: D —
    0.95 ml
    Size 00 hard gelatin capsules have a nominal fluid volume capacity of approximately 0.95 mL.
  99. 99.
    Hepta fluoro propane is
    Show answer and explanation
    Answer: D —
    Propellent 227
    HFA 227 (heptafluoropropane) is designated as propellant 227.
  100. 100.
    Treated soda lime glass is called as
    Show answer and explanation
    Answer: C —
    Type II
    Type II glass consists of soda-lime glass treated with sulfur dioxide to neutralize surface alkalinity.

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