Undergraduate MCQ & Objective Questions
The undergraduate level is a crucial phase in a student's academic journey, especially for those preparing for school and competitive exams. Mastering this stage can significantly enhance your understanding and retention of key concepts. Practicing MCQs and objective questions is essential, as it not only helps in reinforcing knowledge but also boosts your confidence in tackling important questions during exams.
What You Will Practise Here
Fundamental concepts in Mathematics and Science
Key definitions and theories across various subjects
Important formulas and their applications
Diagrams and graphical representations
Critical thinking and problem-solving techniques
Subject-specific MCQs designed for competitive exams
Revision of essential topics for better retention
Exam Relevance
Undergraduate topics are integral to various examinations such as CBSE, State Boards, NEET, and JEE. These subjects often feature a mix of conceptual and application-based questions. Common patterns include multiple-choice questions that assess both theoretical knowledge and practical application, making it vital for students to be well-versed in undergraduate concepts.
Common Mistakes Students Make
Overlooking the importance of understanding concepts rather than rote memorization
Misinterpreting questions due to lack of careful reading
Neglecting to practice numerical problems that require application of formulas
Failing to review mistakes made in previous practice tests
FAQs
Question: What are some effective strategies for solving undergraduate MCQ questions?Answer: Focus on understanding the concepts, practice regularly, and review your answers to learn from mistakes.
Question: How can I improve my speed in answering objective questions?Answer: Time yourself while practicing and gradually increase the number of questions you attempt in a set time.
Start your journey towards mastering undergraduate subjects today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Your success is just a question away!
Q. Which of the following phenomena is responsible for the blue color of the sky? (2022)
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Rayleigh scattering
Show solution
Solution
The blue color of the sky is primarily due to Rayleigh scattering, which scatters shorter wavelengths of light more than longer wavelengths.
Correct Answer:
D
— Rayleigh scattering
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Q. Which of the following plant groups is known for having a life cycle that includes alternation of generations? (2022)
A.
Angiosperms
B.
Gymnosperms
C.
Pteridophytes
D.
All of the above
Show solution
Solution
All of the mentioned groups (Angiosperms, Gymnosperms, and Pteridophytes) exhibit alternation of generations in their life cycles.
Correct Answer:
D
— All of the above
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Q. Which of the following plant groups is known for having a life cycle that includes both gametophyte and sporophyte generations? (2021)
A.
Angiosperms
B.
Gymnosperms
C.
Pteridophytes
D.
All of the above
Show solution
Solution
Pteridophytes, like ferns, exhibit an alternation of generations with both gametophyte and sporophyte stages.
Correct Answer:
C
— Pteridophytes
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Q. Which of the following points lies on the line 4x - 5y + 20 = 0?
A.
(5, 0)
B.
(0, 4)
C.
(4, 0)
D.
(0, -4)
Show solution
Solution
Substituting (0, -4) into the equation gives 4(0) - 5(-4) + 20 = 0, which is true.
Correct Answer:
D
— (0, -4)
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Q. Which of the following polymers is used in the making of rubber? (2019)
A.
Polyethylene
B.
Natural rubber
C.
Polystyrene
D.
Polyvinyl acetate
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Solution
Natural rubber is a polymer made from the latex of rubber trees and is widely used in the production of rubber products.
Correct Answer:
B
— Natural rubber
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Q. Which of the following polymers is used in the manufacture of rubber? (2019)
A.
Polyethylene
B.
Natural rubber
C.
Polystyrene
D.
Polyvinyl acetate
Show solution
Solution
Natural rubber is a polymer made from the latex of rubber trees and is widely used in the manufacture of rubber products.
Correct Answer:
B
— Natural rubber
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Q. Which of the following polymers is used in the production of rubber? (2019)
A.
Polyethylene
B.
Natural rubber
C.
Polystyrene
D.
Polyvinyl acetate
Show solution
Solution
Natural rubber is a polymer made from the latex of rubber trees and is widely used in the production of rubber products.
Correct Answer:
B
— Natural rubber
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Q. Which of the following practices can help conserve biodiversity? (2021)
A.
Deforestation
B.
Overfishing
C.
Sustainable tourism
D.
Pollution
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Solution
Sustainable tourism can help conserve biodiversity by promoting responsible travel that does not harm ecosystems.
Correct Answer:
C
— Sustainable tourism
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Q. Which of the following practices can help in conserving biodiversity? (2021)
A.
Monoculture farming
B.
Deforestation
C.
Sustainable agriculture
D.
Urbanization
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Solution
Sustainable agriculture practices help in conserving biodiversity by maintaining healthy ecosystems.
Correct Answer:
C
— Sustainable agriculture
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Q. Which of the following practices can help reduce soil erosion? (2022)
A.
Overgrazing
B.
Crop rotation
C.
Deforestation
D.
Urbanization
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Solution
Crop rotation helps maintain soil health and reduces soil erosion by preventing nutrient depletion.
Correct Answer:
B
— Crop rotation
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Q. Which of the following practices can lead to habitat fragmentation? (2021)
A.
Urban development
B.
Reforestation
C.
Sustainable agriculture
D.
Wildlife corridors
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Solution
Urban development can lead to habitat fragmentation by dividing ecosystems into smaller, isolated patches.
Correct Answer:
A
— Urban development
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Q. Which of the following processes can lead to speciation? (1990)
A.
Geographic isolation
B.
Behavioral isolation
C.
Temporal isolation
D.
All of the above
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Solution
Speciation can occur through various processes, including geographic, behavioral, and temporal isolation, leading to the formation of new species.
Correct Answer:
D
— All of the above
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Q. Which of the following processes has a positive change in entropy? (2023)
A.
Freezing of water
B.
Condensation of steam
C.
Sublimation of dry ice
D.
Melting of ice
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Solution
The melting of ice has a positive change in entropy as the solid structure becomes more disordered in the liquid state.
Correct Answer:
D
— Melting of ice
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Q. Which of the following processes increases the entropy of the system? (2022)
A.
Freezing of water
B.
Melting of ice
C.
Condensation of steam
D.
Compression of gas
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Solution
The melting of ice increases the entropy of the system as it transitions from a solid to a liquid state, which has more disorder.
Correct Answer:
B
— Melting of ice
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Q. Which of the following processes involves a change from gas to liquid?
A.
Sublimation
B.
Condensation
C.
Evaporation
D.
Freezing
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Solution
Condensation is the process where gas changes to liquid.
Correct Answer:
B
— Condensation
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Q. Which of the following processes involves a change of state without a change in temperature? (2018)
A.
Heating
B.
Cooling
C.
Melting
D.
Boiling
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Solution
Melting involves a change of state (solid to liquid) without a change in temperature.
Correct Answer:
C
— Melting
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Q. Which of the following processes involves the conversion of mRNA into a protein? (2022)
A.
Transcription
B.
Translation
C.
Replication
D.
Translocation
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Solution
Translation is the process where mRNA is decoded to produce a protein.
Correct Answer:
B
— Translation
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Q. Which of the following processes involves the emission of a positron? (2019)
A.
Alpha decay
B.
Beta decay
C.
Gamma decay
D.
Neutron capture
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Solution
Beta decay involves the emission of a positron, which is the antimatter counterpart of an electron.
Correct Answer:
B
— Beta decay
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Q. Which of the following processes involves the synthesis of proteins? (2022)
A.
Replication
B.
Transcription
C.
Translation
D.
Translocation
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Solution
Translation is the process that involves the synthesis of proteins from mRNA.
Correct Answer:
C
— Translation
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Q. Which of the following processes involves the transfer of genetic material between bacteria? (2022)
A.
Transcription
B.
Translation
C.
Transformation
D.
Transduction
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Solution
Transformation is the process by which bacteria take up foreign DNA from their environment.
Correct Answer:
C
— Transformation
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Q. Which of the following processes involves the transfer of heat through a fluid? (2021)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
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Solution
Convection is the process that involves the transfer of heat through a fluid (liquid or gas) due to the movement of the fluid itself.
Correct Answer:
B
— Convection
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Q. Which of the following processes involves the transfer of heat through the movement of fluids? (2021)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
Show solution
Solution
Convection involves the transfer of heat through the movement of fluids.
Correct Answer:
B
— Convection
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Q. Which of the following processes is an example of an isochoric process? (2023)
A.
Heating a gas in a closed container
B.
Compressing a gas in a piston
C.
Expanding a gas against a constant pressure
D.
Cooling a gas at constant pressure
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Solution
An isochoric process is one where the volume remains constant, such as heating a gas in a closed container.
Correct Answer:
A
— Heating a gas in a closed container
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Q. Which of the following processes is directly influenced by auxins? (2021)
A.
Phototropism
B.
Photosynthesis
C.
Respiration
D.
Transpiration
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Solution
Auxins are responsible for phototropism, the growth of plants towards light.
Correct Answer:
A
— Phototropism
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Q. Which of the following processes is influenced by auxins? (2021)
A.
Phototropism
B.
Gravitropism
C.
Apical dominance
D.
All of the above
Show solution
Solution
Auxins influence various processes including phototropism, gravitropism, and apical dominance.
Correct Answer:
D
— All of the above
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Q. Which of the following processes is irreversible? (2022)
A.
Isothermal expansion
B.
Adiabatic expansion
C.
Free expansion
D.
Isobaric process
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Solution
Free expansion is an irreversible process as it occurs without any external pressure acting on the gas.
Correct Answer:
C
— Free expansion
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Q. Which of the following processes is isochoric? (2023)
A.
Constant volume
B.
Constant pressure
C.
Constant temperature
D.
Adiabatic
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Solution
An isochoric process is one that occurs at constant volume.
Correct Answer:
A
— Constant volume
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Q. Which of the following processes is NOT directly influenced by auxins? (2021)
A.
Phototropism
B.
Gravitropism
C.
Apical dominance
D.
Photosynthesis
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Solution
Photosynthesis is not directly influenced by auxins; they mainly affect growth and development processes.
Correct Answer:
D
— Photosynthesis
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Q. Which of the following processes is NOT influenced by auxins? (2021)
A.
Phototropism
B.
Gravitropism
C.
Apical dominance
D.
Fruit ripening
Show solution
Solution
Fruit ripening is primarily influenced by ethylene, not auxins.
Correct Answer:
D
— Fruit ripening
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Q. Which of the following processes is NOT influenced by plant hormones? (2021)
A.
Seed germination
B.
Fruit ripening
C.
Photosynthesis
D.
Flowering
Show solution
Solution
Photosynthesis is a biochemical process that is not directly influenced by plant hormones.
Correct Answer:
C
— Photosynthesis
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