This problem set provides structured and comprehensive practice on concepts related to sterilization and disinfection methods. It is designed for Class 11–12 students, NEET aspirants, and undergraduate learners aiming to strengthen understanding through focused, exam-oriented problem solving.
In this section, you will practice:
Concept-based questions on sterilization and disinfection principles
MCQs aligned with NCERT and competitive exam patterns
Assertion–reason and multi-statement problems
Numerical and data-interpretation questions
Diagram-based identification and method-selection problems
Application-based and mixed-difficulty questions
Progressive problem sets from basic to advanced levels
The problem set is structured to support gradual skill development, improve accuracy and confidence, and help students evaluate their preparation for school examinations, NEET, and undergraduate assessments.
Strengthen your mastery of sterilization and disinfection through consistent and focused problem-solving practice.
Q. What is the main advantage of using steam sterilization over dry heat sterilization?
A.
Faster sterilization time
B.
Lower temperatures required
C.
More effective against spores
D.
All of the above
Solution
Steam sterilization has the advantages of faster sterilization time, lower temperatures required, and greater effectiveness against spores compared to dry heat sterilization.
Q. What is the primary difference between disinfection and sterilization?
A.
Disinfection kills all microorganisms, sterilization does not
B.
Sterilization kills all microorganisms, disinfection does not
C.
Disinfection is faster than sterilization
D.
Sterilization is only for surgical instruments
Solution
The primary difference is that sterilization kills all microorganisms, while disinfection reduces the number of viable organisms but may not eliminate all.
Correct Answer:
B
— Sterilization kills all microorganisms, disinfection does not
Q. Which of the following methods is NOT considered a form of sterilization?
A.
Autoclaving
B.
Dry heat sterilization
C.
Chemical disinfection
D.
Filtration
Solution
Chemical disinfection is a method used to reduce microbial load but does not guarantee the elimination of all microorganisms, thus it is not considered sterilization.
