Top 100 Pharmaceutical Industry Interview Questions and Answers for B.Pharmacy Freshers (QC, QA, Production)

The pharmaceutical industry offers excellent career opportunities for B.Pharmacy graduates in departments such as Quality Control (QC), Quality Assurance (QA), Production, Manufacturing, and Research.

If you are preparing for pharma company interviews, walk-in interviews, or campus placements, this guide covers 100 important interview questions with answers frequently asked in companies like Aurobindo Pharma, Hetero, Cipla, Dr. Reddy’s, Sun Pharma, Divis, and Lupin.

1–10 Basic Pharmaceutical Interview Questions

1. What is Quality Control?

Answer:
Quality Control (QC) ensures that raw materials, intermediate products, and finished products meet predefined specifications and quality standards.

2. What is Quality Assurance?

Answer:
Quality Assurance (QA) ensures that manufacturing processes follow GMP guidelines and produce consistent quality products.

3. What is the difference between QA and QC?

4. What is GMP?

Answer:
GMP stands for Good Manufacturing Practices, which ensure that pharmaceutical products are consistently produced and controlled.

5. What is GLP?

Answer:
GLP means Good Laboratory Practice, ensuring laboratory tests are conducted accurately and documented properly.

6. What is SOP?

Answer:
SOP stands for Standard Operating Procedure, a written instruction describing how to perform a specific task.

7. What is API?

Answer:
API means Active Pharmaceutical Ingredient, the chemical substance responsible for therapeutic effect.

8. What is dosage form?

Answer:
A dosage form is the physical form of a drug such as tablets, capsules, syrups, injections, or ointments.

9. What is pharmacopeia?

Answer:
Pharmacopeia is an official book that contains standards for drug quality and testing methods.

10. What are the types of pharmacopeia?

Answer:
Examples include:

• IP – Indian Pharmacopoeia
• USP – United States Pharmacopoeia
• BP – British Pharmacopoeia

11–20 Sterile Manufacturing Questions

11. What is the main reason for making injectables germ-free?

Answer:
Correct Answer: B) To avoid infection
Injectable drugs must be sterile to prevent infections in patients.

12. What is the key requirement of injectable manufacturing?

Answer:
Correct Answer: B) Sterility
Sterile conditions are essential for injectable drug production.

13. What is the atomic number of Sodium?

Answer:
Correct Answer: B) 11

14. Who discovered the electron?

Answer:
Correct Answer: C) J.J. Thomson

15. Which of the following is NOT a sterile product?

Answer:
Correct Answer: C) Tablets

16. Which type of water is used in injectables?

Answer:
Correct Answer: C) WFI (Water for Injection)

17. Aseptic means:

Answer:
Correct Answer: B) Germ-free handling

18. What is terminal sterilization?

Answer:
Correct Answer: A) Sterilizing after filling

19. Which process ensures no microbial growth?

Answer:
Correct Answer: B) Aseptic filtration

20. GMP stands for:

Answer:
Correct Answer: A) Good Manufacturing Practice

21–30 Pharma Industry Basic Questions

21. PPE stands for:

Answer:
Correct Answer: A) Personal Protective Equipment

22. Who is responsible for product quality?

Answer:
Correct Answer: C) Everyone

23. What is the full form of API in pharmaceutical industry?

Answer:
Correct Answer: C) Active Pharmaceutical Ingredient

24. What is the average pH value of pure water at 25°C?

Answer:
Correct Answer: C) 7

25. What is the chemical name of NaCl?

Answer:
Correct Answer: B) Sodium Chloride

26. Which element has atomic number 1?

Answer:
Correct Answer: C) Hydrogen

27. Which element is liquid at room temperature?

Answer:
Correct Answer: B) Mercury

28. What is the atomic number of Carbon?

Answer:
Correct Answer: B) 6

29. Which gas is most abundant in the Earth’s atmosphere?

Answer:
Correct Answer: C) Nitrogen

30. What is the pH value of a strong acid?

Answer:
Correct Answer: C) Less than 7

31–50 Quality Control Interview Questions

31. What is UV spectroscopy?

It is an analytical technique used to measure absorbance of ultraviolet light by a compound.

32. What is λmax?

The wavelength at which maximum absorbance occurs.

33. What is Beer-Lambert Law?

[
A = \varepsilon bc
]

34. What is absorbance?

Amount of light absorbed by a substance.

35. What is transmittance?

The fraction of light that passes through a sample.

36. What is HPLC?

High Performance Liquid Chromatography used to separate and quantify compounds.

37. What are components of HPLC?

• Pump
• Injector
• Column
• Detector
• Data system

38. What is retention time?

Time taken by a compound to reach the detector.

39. What is plate count?

It measures column efficiency.

40. What is tailing factor?

Indicates symmetry of chromatographic peak.

41. What is dissolution test?

Measures drug release from dosage form.

42. What is disintegration test?

Measures time taken for tablets to break down.

43. What is friability?

Measures mechanical strength of tablets.

44. What is hardness test?

Measures tablet crushing strength.

45. What is weight variation test?

Ensures uniformity of tablet weight.

46. What is LOD?

Loss on Drying measures moisture content.

47. What is Karl Fischer titration?

Method used to determine water content.

48. What is assay?

Determines amount of active ingredient.

49. What is impurity testing?

Identifies unwanted substances in drugs.

50. What is system suitability?

Ensures chromatographic system performance.

51–75 QA and Documentation Questions

51. What is deviation?

Departure from approved procedure.

52. What is OOS?

Out of Specification result.

53. What is CAPA?

Corrective and Preventive Action.

54. What is change control?

System for managing changes in manufacturing.

55. What is BMR?

Batch Manufacturing Record.

56. What is BPR?

Batch Packing Record.

57. What is line clearance?

Ensuring no previous product remains in equipment.

58. What is validation?

Proof that process consistently produces expected results.

59. Types of validation?

• Process validation
• Cleaning validation
• Method validation

60. What is accuracy?

Closeness to true value.

61. What is precision?

Reproducibility of results.

62. What is specificity?

Ability to analyze analyte without interference.

63. What is linearity?

Direct relationship between concentration and response.

64. What is robustness?

Method reliability under small variations.

65. What is ruggedness?

Reproducibility under different conditions.

66. What is LOD?

Limit of Detection.

67. What is LOQ?

Limit of Quantification.

68. What is documentation?

Recording all manufacturing and testing activities.

69. What is GDP?

Good Documentation Practice.

70. What is stability testing?

Study of drug stability over time.

71. What is accelerated stability testing?

Testing under high temperature and humidity.

72. What is shelf life?

Time during which drug remains effective.

73. What is degradation study?

Study of drug breakdown.

74. What is forced degradation?

Drug degradation under extreme conditions.

75. What is impurity profile?

Identification and quantification of impurities.

76–100 Production / Manufacturing Questions

76. What is pharmaceutical manufacturing?

Process of converting raw materials into medicines.

77. What are dosage forms?

• Tablets
• Capsules
• Syrups
• Injections

78. Steps in tablet manufacturing?

1. Weighing
2. Mixing
3. Granulation
4. Drying
5. Compression
6. Coating
7. Packaging

79. What is granulation?

Process of forming granules from powder.

80. Types of granulation?

• Wet granulation
• Dry granulation

81. What is blending?

Uniform mixing of powders.

82. What is lubrication?

Adding lubricant to reduce friction.

83. What is tablet compression?

Compressing granules into tablets.

84. What is coating?

Applying protective layer to tablets.

85. What is bioavailability?

Fraction of drug reaching bloodstream.

86. What is pharmacokinetics?

Study of drug movement in body.

87. Pharmacokinetic phases?

• Absorption
• Distribution
• Metabolism
• Excretion

88. What is half-life?

Time required for drug concentration to reduce by half.

89. What is metabolism?

Chemical modification of drug in body.

90. What is excretion?

Removal of drugs from body.

91. What is API and excipient difference?

API = active drug
Excipient = inactive substance.

92. What is formulation?

Process of combining API with excipients.

93. What is bioequivalence?

Two drugs having same bioavailability.

94. What is packaging?

Protecting drug product.

95. What is labeling?

Providing product information.

96. What is yield?

[
Yield = \frac{Actual}{Theoretical} \times 100
]

97. What is process control?

Monitoring manufacturing process.

98. What is contamination?

Presence of unwanted substances.

99. What is cross contamination?

Contamination between different products.

100. Why should we hire you?

“I have strong pharmaceutical knowledge, practical laboratory skills, and I am eager to contribute to maintaining product quality in the pharmaceutical industry.”