RRB P. Chemistry 15th Sept 24.pptx gghhvgh

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2. 1. Cephalosporins have (a) Beta lactam ring fused with 5 membered thiazolidine ring (b) Beta lactam ring fused with 6 membered dihydrothiazine ring (c) Beta lactam ring fused with peptide linkages (d) Beta lactam ring linked with acetoxy methyl group

3. 1. Cephalosporins have (a) Beta lactam ring fused with 5 membered thiazolidine ring (b) Beta lactam ring fused with 6 membered dihydrothiazine ring (c) Beta lactam ring fused with peptide linkages (d) Beta lactam ring linked with acetoxy methyl group

4. 2. Clavulanic acid is a (a) ẞ- lactam inhibitor (b) 𝝰-receptor Inhibitor (c) ẞ-lactamase inhibitor (d) ẞ- receptor Inhibitor

5. 2. Clavulanic acid is a (a) ẞ- lactam inhibitor (b) 𝝰-receptor Inhibitor (c) ẞ-lactamase inhibitor (d) ẞ- receptor Inhibitor

6. 3. The heterocyclic nucleus present in sulphadiazine is (a) Pyridine (b) Pyrimidine (c) Piperidine (d) Oxazole

7. 3. The heterocyclic nucleus present in sulphadiazine is (a) Pyridine (b) Pyrimidine (c) Piperidine (d) Oxazole

8. 4. Which one of these antibiotics contain Naphthacene nucleus (a) Tobramycin (b) Tetracyclines (c) Amoxycillin (d) None of these

9. 4. Which one of these antibiotics contain Naphthacene nucleus (a) Tobramycin (b) Tetracyclines (c) Amoxycillin (d) None of these

10. 5. Isoniazid, nicotinamide and nikethamide the following heterocyclic have ring in common (a) Pyrazine (b) Oxazole (c) Pyridine (d) Pyrazole

11. 5. Isoniazid, nicotinamide and nikethamide the following heterocyclic have ring in common (a) Pyrazine (b) Oxazole (c) Pyridine (d) Pyrazole

12. 6. An organic mercury compound which is commonly used as antiseptic/ antifungal agent is (a) Mersalyl acid (b) Mercaptomerin (c) Thiomersal (d) Chlormerodrin

13. 6. An organic mercury compound which is commonly used as antiseptic/ antifungal agent is (a) Mersalyl acid (b) Mercaptomerin (c) Thiomersal (d) Chlormerodrin

14. 7. The antifungal drug, fluconazole belongs to the class of (a) Pyridine (b) Azoles (c) Pyrimidines (d) Acridines

15. 7. The antifungal drug, fluconazole belongs to the class of (a) Pyridine (b) Azoles (c) Pyrimidines (d) Acridines

16. 8. Which of the following is a polyene antifungal antibiotic (a) Amphotericin (b) Tolnaftate (c) Undecylenic acid (d) Cephalothin

17. 8. Which of the following is a polyene antifungal antibiotic (a) Amphotericin (b) Tolnaftate (c) Undecylenic acid (d) Cephalothin

18. 9. An antimalarial drug containing endoperoxide structure is (a) Quinine (b) Artemisinin (c) Doxycycline (d) Cycloguanil

19. 9. An antimalarial drug containing endoperoxide structure is (a) Quinine (b) Artemisinin (c) Doxycycline (d) Cycloguanil

20. 10. Amodiaquine is a derivative of (a) 3-amino quinolone (b) 4-amino quinolone (c) 2-amino quinolone (d) 5-amino quinolone

21. 10. Amodiaquine is a derivative of (a) 3-amino quinolone (b) 4-amino quinolone (c) 2-amino quinolone (d) 5-amino quinolone

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24. 11. Determinate errors are also known as_________errors (a) Constant (b) Accidental (c) Systematic (d) Random

25. 11. Determinate errors are also known as_________errors (a) Constant (b) Accidental (c) Systematic (d) Random

26. 12. When 0.1 M HCl is titrated with 0.1 M sodium hydroxide, what will be pH at equivalence point 9 8 7 (d) 6

27. 12. When 0.1 M HCl is titrated with 0.1 M sodium hydroxide, what will be pH at equivalence point 9 8 7 (d) 6

28. 13. Indeterminate errors are also known as errors (a) Random (b) Natural (c) Constant (d) Accidental

29. 13. Indeterminate errors are also known as errors (a) Random (b) Natural (c) Constant (d) Accidental

30. 14. The extent of reproducibility of the result is (a) Accuracy (b) Precision (c) Absorption Linearity (d) Absorption range

31. 14. The extent of reproducibility of the result is (a) Accuracy (b) Precision (c) Absorption Linearity (d) Absorption range

32. 15. Which of the following is the point where the unknown analyte has completely reacted with the titrant (a) End point (b) Equivalence point (c) Mid-point (d) Intermediate point

33. 15. Which of the following is the point where the unknown analyte has completely reacted with the titrant (a) End point (b) Equivalence point (c) Mid-point (d) Intermediate point

34. 16. Which of the following is used as an indicator in the Volhard method of titration (a) Phenol red (b) Starch mucilage (c) Ferric alum (d) Crystal violet

35. 16. Which of the following is used as an indicator in the Volhard method of titration (a) Phenol red (b) Starch mucilage (c) Ferric alum (d) Crystal violet

36. 17. The pH range of the Indicator is 4.2 – 6.3 (a) Bromocresol green (b) Methyl orange (c) Phenol red (d) Methyl red

37. 17. The pH range of the Indicator is 4.2 – 6.3 (a) Bromocresol green (b) Methyl orange (c) Phenol red (d) Methyl red

38. 18. In the assay of Hydrogen Peroxide the indicator used is (a) Potassium Permanganate (b) Phenolphthalein (c) Methyl Orange (d) Thymol Blue

39. 18. In the assay of Hydrogen Peroxide the indicator used is (a) Potassium Permanganate (b) Phenolphthalein (c) Methyl Orange (d) Thymol Blue

40. 19. Aprotic solvents have (a) Acidic properties (b) Basic properties (c) Both acidic and basic properties (d) No acidic or basic properties

41. 19. Aprotic solvents have (a) Acidic properties (b) Basic properties (c) Both acidic and basic properties (d) No acidic or basic properties

42. 20. Which one among the following is an example of aprotic solvent (a) Toluene (b) Sulphuric acid (c) Acetic acid (d) Water

43. 20. Which one among the following is an example of aprotic solvent (a) Toluene (b) Sulphuric acid (c) Acetic acid (d) Water

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46. 21. Which of the following is an example of azo indicator (a) Phenol red (b) Phenolphthalein (c) Methyl red (d) Ferroin

47. 21. Which of the following is an example of azo indicator (a) Phenol red (b) Phenolphthalein (c) Methyl red (d) Ferroin

48. 22. Which of the following is NOT a titrimetric method (a) Fluorimetry (b) Precipitation (c) Complexometry (d) Acid-base

49. 22. Which of the following is NOT a titrimetric method (a) Fluorimetry (b) Precipitation (c) Complexometry (d) Acid-base

50. 23. Complexone III is otherwise known as (a) Potassium permanganate (b) Capric iodide (c) Disodium edetate (d) Ferry ferrocyanide

51. 23. Complexone III is otherwise known as (a) Potassium permanganate (b) Capric iodide (c) Disodium edetate (d) Ferry ferrocyanide

52. 24. In gravimetric analysis for the determination of ash value, the acid insoluble portion of ash is determined by boiling with (a) Sodium chloride (b) Dilute hydrochloric acid (c) Ammonium hydroxide (d) Acetic acid

53. 24. In gravimetric analysis for the determination of ash value, the acid insoluble portion of ash is determined by boiling with (a) Sodium chloride (b) Dilute hydrochloric acid (c) Ammonium hydroxide (d) Acetic acid

54. 25. Calcium gluconate can be assayed by (a) Redox titration (b) Complexometric titration (c) Precipitation titration (d) Acid-base titration

55. 25. Calcium gluconate can be assayed by (a) Redox titration (b) Complexometric titration (c) Precipitation titration (d) Acid-base titration

56. 26. Which of the following is used for standardization in redox titration (a) Calcium carbonate (b) Sulfanilic acid (c) Potassium Hydrogen phthalate (d) Ferrous sulphate

57. 26. Which of the following is used for standardization in redox titration (a) Calcium carbonate (b) Sulfanilic acid (c) Potassium Hydrogen phthalate (d) Ferrous sulphate

58. 27. Sodium fluoride is assayed by (a) Diazotization titration (b) Complexometric titration (c) Acid-base titration (d) Non-aqueous titration

59. 27. Sodium fluoride is assayed by (a) Diazotization titration (b) Complexometric titration (c) Acid-base titration (d) Non-aqueous titration

60. 28. The indicator used in Nonaqueous titration of barbiturates is (a) Phenolphthalein (b) Bromocresol green (c) Crystal violet (d) Thymol blue

61. 28. The indicator used in Nonaqueous titration of barbiturates is (a) Phenolphthalein (b) Bromocresol green (c) Crystal violet (d) Thymol blue

62. 29. Which of the following drugs is assayed by complexometric titrations as per pharmacopoeial standards (a) Magnesium sulphate (b) Zinc oxide (c) Potassium bromide (d) Calcium aminoacylate

63. 29. Which of the following drugs is assayed by complexometric titrations as per pharmacopoeial standards (a) Magnesium sulphate (b) Zinc oxide (c) Potassium bromide (d) Calcium aminoacylate

64. 30. Sodium tetra phenyl borate titration are also known as (a) Non-aqueous titration (b) Redox titration (c) Indicator extraction titration (d) Argentometric titration

65. 30. Sodium tetra phenyl borate titration are also known as (a) Non-aqueous titration (b) Redox titration (c) Indicator extraction titration (d) Argentometric titration

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68. 31. The basis for the relationship between the voltage generated by an electrochemical cell and the relevant concentration at each electrode is explained by (a) Faradays Law (b) Nitrogen Rule (c) Nernst Equation (d) Gibbs Equation

69. 31. The basis for the relationship between the voltage generated by an electrochemical cell and the relevant concentration at each electrode is explained by (a) Faradays Law (b) Nitrogen Rule (c) Nernst Equation (d) Gibbs Equation

70. 32. Which of the following materials has the highest thermal conductivity (a) Steel (b) Stainless steel (c) Diatomite (d) Copper

71. 32. Which of the following materials has the highest thermal conductivity (a) Steel (b) Stainless steel (c) Diatomite (d) Copper

72. 33. A widely accepted detector electrode for pH measurements (a) Platinum wire (b) Glass electrode (c) Ag-AgNO3 electrode (d) Lanthanum fluoride

73. 33. A widely accepted detector electrode for pH measurements (a) Platinum wire (b) Glass electrode (c) Ag-AgNO3 electrode (d) Lanthanum fluoride

74. 34. The electrode used in polarographic analysis is a (a) Glass electrode (b) Glass membrane electrode (c) Standard Hydrogen electrode (d) Dropping mercury electrode

75. 34. The electrode used in polarographic analysis is a (a) Glass electrode (b) Glass membrane electrode (c) Standard Hydrogen electrode (d) Dropping mercury electrode

76. 35. Electroreducible substances can be determined by (a) Conductometry (b) Amperometry (c) Calorimetry (d) Potentiometry

77. 35. Electroreducible substances can be determined by (a) Conductometry (b) Amperometry (c) Calorimetry (d) Potentiometry

78. 36. The principle in HPTLC is (a) Absorption (b) Elution (c) Adsorption (d) Purging

79. 36. The principle in HPTLC is (a) Absorption (b) Elution (c) Adsorption (d) Purging

80. 37. A chromatographic technique which is applicable to separate high molecular weight species is called (a) Thin-layer chromatography (b) Column chromatography (c) High-performance thin-layer chromatography (d) Size-exclusion chromatography

81. 37. A chromatographic technique which is applicable to separate high molecular weight species is called (a) Thin-layer chromatography (b) Column chromatography (c) High-performance thin-layer chromatography (d) Size-exclusion chromatography

82. 38. Flame Ionisation Detector is the most common detector for (a) Gas Chromatography (b) Thin Layer Chromatography (c) Liquid Chromatography (d) High-Pressure Liquid Chromatography

83. 38. Flame Ionisation Detector is the most common detector for (a) Gas Chromatography (b) Thin Layer Chromatography (c) Liquid Chromatography (d) High Pressure Liquid Chromatography mechanical pump, which device is required

84. 39. In HPLC, while supplying mobile phase by mechanical pump, which device is required to smooth out the pulses (a) Gauze (b) Temperature (c) Injection (d) Damping

85. 39. In HPLC, while supplying mobile phase by mechanical pump, which device is required to smooth out the pulses (a) Gauze (b) Temperature (c) Injection (d) Damping

86. 40. Which ionization technique can also be used with very low flow separation systems such as capillary electrophoresis, capillary HPLC and chip style separators (a) Atmospheric pressure chemical ionization (b) Electrospray (c) Chemical ionization (d) Nanospray

87. 40. Which ionization technique can also be used with very low flow separation systems such as capillary electrophoresis, capillary HPLC and chip style separators (a) Atmospheric pressure chemical ionization (b) Electrospray (c) Chemical ionization (d) Nanospray

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