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 is NOT a benefit of biotechnology in agriculture? (2020)
A.
Increased crop yield
B.
Reduced pesticide use
C.
Enhanced food security
D.
Higher labor costs
Show solution
Solution
Higher labor costs are not a benefit of biotechnology; in fact, biotechnology often aims to reduce labor costs through increased efficiency.
Correct Answer:
D
— Higher labor costs
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Q. Which of the following is NOT a benefit of biotechnology in medicine? (2020)
A.
Production of monoclonal antibodies
B.
Development of vaccines
C.
Creation of synthetic fertilizers
D.
Gene therapy
Show solution
Solution
Creation of synthetic fertilizers is not a benefit of biotechnology in medicine; it is related to agricultural biotechnology.
Correct Answer:
C
— Creation of synthetic fertilizers
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Q. Which of the following is NOT a benefit of genetically modified crops? (2022)
A.
Increased yield
B.
Reduced pesticide use
C.
Enhanced nutritional content
D.
Higher cost of production
Show solution
Solution
Genetically modified crops are generally designed to reduce costs and increase yield, not to increase production costs.
Correct Answer:
D
— Higher cost of production
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Q. Which of the following is NOT a benefit of genetically modified organisms (GMOs)? (2022)
A.
Increased resistance to pests
B.
Higher nutritional value
C.
Reduced agricultural yield
D.
Drought resistance
Show solution
Solution
Reduced agricultural yield is not a benefit of GMOs; in fact, they are designed to increase yield and resilience.
Correct Answer:
C
— Reduced agricultural yield
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Q. Which of the following is NOT a benefit of using biotechnology in agriculture? (2022)
A.
Reduced pesticide use
B.
Increased resistance to diseases
C.
Higher production costs
D.
Enhanced nutritional content
Show solution
Solution
Higher production costs are not a benefit of biotechnology; in fact, biotechnology aims to reduce costs.
Correct Answer:
C
— Higher production costs
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Q. Which of the following is NOT a biotechnological application in medicine? (2022)
A.
Gene therapy
B.
Monoclonal antibodies
C.
Genetic engineering of crops
D.
Vaccines production
Show solution
Solution
Genetic engineering of crops is primarily an agricultural application, not a direct medical application.
Correct Answer:
C
— Genetic engineering of crops
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Q. Which of the following is NOT a biotechnological application? (2022)
A.
Bioremediation
B.
Gene therapy
C.
Traditional farming
D.
Production of biofuels
Show solution
Solution
Traditional farming does not involve biotechnological methods, while the other options are applications of biotechnology.
Correct Answer:
C
— Traditional farming
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Q. Which of the following is NOT a characteristic of a population? (2023)
A.
Density
B.
Birth rate
C.
Age structure
D.
Species diversity
Show solution
Solution
Species diversity refers to the variety of species in an ecosystem, not a characteristic of a single population.
Correct Answer:
D
— Species diversity
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Q. Which of the following is NOT a characteristic of an ecosystem? (2021)
A.
Energy flow
B.
Nutrient cycling
C.
Static population
D.
Biotic and abiotic interactions
Show solution
Solution
Ecosystems are dynamic and characterized by changing populations, not static populations.
Correct Answer:
C
— Static population
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Q. Which of the following is not a characteristic of an endothermic reaction? (2023)
A.
Absorbs heat
B.
Feels cold to the touch
C.
Releases heat
D.
Positive ΔH
Show solution
Solution
Endothermic reactions absorb heat, feel cold, and have a positive ΔH; they do not release heat.
Correct Answer:
C
— Releases heat
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Q. Which of the following is NOT a characteristic of an exothermic reaction? (2019)
A.
Releases heat
B.
ΔH is negative
C.
Temperature of the surroundings increases
D.
Absorbs energy from the surroundings
Show solution
Solution
An exothermic reaction releases heat and has a negative ΔH. It causes the temperature of the surroundings to increase, not absorb energy.
Correct Answer:
D
— Absorbs energy from the surroundings
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Q. Which of the following is not a characteristic of an ideal solution? (2019)
A.
Constant boiling point
B.
Obeys Raoult's law
C.
No heat change on mixing
D.
Variable composition
Show solution
Solution
An ideal solution has a constant boiling point and obeys Raoult's law, while variable composition is not a characteristic.
Correct Answer:
D
— Variable composition
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Q. Which of the following is NOT a characteristic of crystalline solids? (2019)
A.
Anisotropy
B.
Definite melting point
C.
Isotropy
D.
Long-range order
Show solution
Solution
Crystalline solids exhibit anisotropy, meaning their properties vary with direction, while isotropy refers to uniform properties in all directions.
Correct Answer:
C
— Isotropy
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Q. Which of the following is not a characteristic of d-block elements? (2023)
A.
Formation of complex ions
B.
Variable oxidation states
C.
High ionization energies
D.
Good conductors of electricity
Show solution
Solution
D-block elements typically have variable oxidation states and lower ionization energies compared to p-block elements.
Correct Answer:
C
— High ionization energies
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Q. Which of the following is NOT a characteristic of essential oils? (2021)
A.
Volatile
B.
Non-polar
C.
Water-soluble
D.
Aromatic
Show solution
Solution
Essential oils are typically non-water-soluble and are known for their volatile and aromatic properties.
Correct Answer:
C
— Water-soluble
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Q. Which of the following is NOT a characteristic of ionic solids? (2021)
A.
High melting point
B.
Electrical conductivity in solid state
C.
Brittleness
D.
Solubility in water
Show solution
Solution
Ionic solids do not conduct electricity in the solid state; they conduct when melted or dissolved in water.
Correct Answer:
B
— Electrical conductivity in solid state
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Q. Which of the following is NOT a characteristic of K-selected species? (2022)
A.
Long lifespan
B.
High parental care
C.
High reproductive rate
D.
Stable population size
Show solution
Solution
K-selected species typically have low reproductive rates, focusing on raising fewer offspring with high parental care.
Correct Answer:
C
— High reproductive rate
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Q. Which of the following is not a characteristic of life? (2023)
A.
Metabolism
B.
Homeostasis
C.
Adaptation
D.
Decay
Show solution
Solution
Decay is not a characteristic of life; it is a process that occurs after death.
Correct Answer:
D
— Decay
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Q. Which of the following is NOT a characteristic of living organisms? (2020)
A.
Growth
B.
Reproduction
C.
Movement
D.
Inertia
Show solution
Solution
Inertia is not a characteristic of living organisms; they exhibit growth, reproduction, and movement.
Correct Answer:
D
— Inertia
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Q. Which of the following is not a characteristic of p-block elements? (2021)
A.
Form covalent bonds
B.
Have high electronegativity
C.
Are all metals
D.
Can form multiple oxidation states
Show solution
Solution
Not all p-block elements are metals; many are nonmetals and metalloids.
Correct Answer:
C
— Are all metals
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Q. Which of the following is NOT a characteristic of polymers? (2023)
A.
High molecular weight
B.
Low melting point
C.
Viscoelasticity
D.
Solubility in water
Show solution
Solution
Polymers typically have low solubility in water, especially synthetic ones.
Correct Answer:
D
— Solubility in water
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Q. Which of the following is NOT a characteristic of r-selected species? (2019)
A.
High fecundity
B.
Short lifespan
C.
Low parental investment
D.
Long gestation period
Show solution
Solution
R-selected species are characterized by high fecundity and short lifespans, not long gestation periods.
Correct Answer:
D
— Long gestation period
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Q. Which of the following is NOT a characteristic of solids? (2023)
A.
Definite shape
B.
Definite volume
C.
High compressibility
D.
Low kinetic energy
Show solution
Solution
Solids are not highly compressible; they have a definite shape and volume, and their particles vibrate in fixed positions.
Correct Answer:
C
— High compressibility
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Q. Which of the following is NOT a characteristic of the phylum Echinodermata? (2022)
A.
Radial symmetry
B.
Water vascular system
C.
Presence of a notochord
D.
Tube feet
Show solution
Solution
Echinodermata do not possess a notochord; this feature is characteristic of Chordata.
Correct Answer:
C
— Presence of a notochord
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Q. Which of the following is NOT a characteristic of the phylum Mollusca? (2022)
A.
Soft-bodied
B.
Presence of a shell
C.
Jointed legs
D.
Mantle
Show solution
Solution
Phylum Mollusca is characterized by soft bodies, often with a shell, and a mantle, but they do not have jointed legs.
Correct Answer:
C
— Jointed legs
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Q. Which of the following is NOT a characteristic of the phylum Porifera? (2023)
A.
Multicellular
B.
Presence of true tissues
C.
Aquatic habitat
D.
Filter feeders
Show solution
Solution
Porifera, or sponges, lack true tissues, which distinguishes them from other multicellular organisms.
Correct Answer:
B
— Presence of true tissues
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Q. Which of the following is not a characteristic of the plant kingdom? (2020)
A.
Eukaryotic cells
B.
Autotrophic nutrition
C.
Presence of chlorophyll
D.
Heterotrophic nutrition
Show solution
Solution
The plant kingdom is characterized by eukaryotic cells, autotrophic nutrition, and the presence of chlorophyll. Heterotrophic nutrition is not a characteristic of plants.
Correct Answer:
D
— Heterotrophic nutrition
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Q. Which of the following is not a component of DNA? (2018)
A.
Deoxyribose
B.
Phosphate group
C.
Ribose
D.
Nitrogenous base
Show solution
Solution
Ribose is not a component of DNA; it is found in RNA. DNA contains deoxyribose.
Correct Answer:
C
— Ribose
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Q. Which of the following is NOT a component of the cell theory? (2018)
A.
All living things are composed of cells
B.
Cells are the basic unit of life
C.
All cells arise from pre-existing cells
D.
Cells can arise spontaneously from non-living matter
Show solution
Solution
The cell theory states that all living things are composed of cells, cells are the basic unit of life, and all cells arise from pre-existing cells. Spontaneous generation is not part of the cell theory.
Correct Answer:
D
— Cells can arise spontaneously from non-living matter
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Q. Which of the following is NOT a condition for natural selection to occur?
A.
Variation in traits
B.
Inheritance of traits
C.
Overproduction of offspring
D.
Uniformity of traits
Show solution
Solution
Uniformity of traits is not a condition for natural selection; rather, variation in traits is essential for natural selection to act upon.
Correct Answer:
D
— Uniformity of traits
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