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 symptom of diabetes? (2020)
A.
Increased thirst
B.
Frequent urination
C.
Weight gain
D.
Fatigue
Show solution
Solution
Weight gain is not a typical symptom of diabetes; rather, weight loss is more common in type 1 diabetes.
Correct Answer:
C
— Weight gain
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Q. Which of the following is NOT a type of connective tissue? (2023)
A.
Blood
B.
Bone
C.
Cartilage
D.
Epithelial
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Solution
Epithelial tissue is not a type of connective tissue; it serves as a protective layer and is distinct from connective tissues.
Correct Answer:
D
— Epithelial
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Q. Which of the following is NOT a type of crystal system? (2021)
A.
Cubic
B.
Tetragonal
C.
Hexagonal
D.
Quadratic
Show solution
Solution
Quadratic is not a recognized type of crystal system; the correct systems include cubic, tetragonal, hexagonal, orthorhombic, and others.
Correct Answer:
D
— Quadratic
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Q. Which of the following is NOT a type of crystalline solid? (2021)
A.
Ionic
B.
Molecular
C.
Amorphous
D.
Metallic
Show solution
Solution
Amorphous solids do not have a long-range order and are not classified as crystalline solids.
Correct Answer:
C
— Amorphous
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Q. Which of the following is NOT a type of inheritance pattern? (2021)
A.
Incomplete dominance
B.
Codominance
C.
Polygenic inheritance
D.
Transgenic inheritance
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Solution
Transgenic inheritance is not a recognized pattern of inheritance; it refers to organisms that have been genetically modified.
Correct Answer:
D
— Transgenic inheritance
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Q. Which of the following is NOT a type of simple permanent tissue? (2019)
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Xylem
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Solution
Xylem is a complex tissue, while parenchyma, collenchyma, and sclerenchyma are types of simple permanent tissues.
Correct Answer:
D
— Xylem
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Q. Which of the following is NOT a type of transport in plants?
A.
Active transport
B.
Passive transport
C.
Facilitated diffusion
D.
Electrolysis
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Solution
Electrolysis is not a type of transport in plants; it is a chemical process involving the decomposition of substances.
Correct Answer:
D
— Electrolysis
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Q. Which of the following is NOT a use of microbes in agriculture? (2023)
A.
Nitrogen fixation
B.
Biopesticides
C.
Soil fertility enhancement
D.
Water pollution
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Solution
Water pollution is not a use of microbes; rather, microbes can help improve soil fertility and act as biopesticides.
Correct Answer:
D
— Water pollution
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Q. Which of the following is NOT a use of microbes in human welfare? (2023)
A.
Bioremediation
B.
Food production
C.
Genetic engineering
D.
Causing infections
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Solution
Causing infections is not a beneficial use of microbes; it is a harmful effect.
Correct Answer:
D
— Causing infections
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Q. Which of the following is not an alkaline earth metal? (2020)
A.
Barium
B.
Strontium
C.
Calcium
D.
Aluminum
Show solution
Solution
Aluminum (Al) is not an alkaline earth metal; it is a post-transition metal.
Correct Answer:
D
— Aluminum
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Q. Which of the following is not found in prokaryotic cells? (2022)
A.
Ribosomes
B.
Nucleus
C.
Plasma Membrane
D.
Cytoplasm
Show solution
Solution
Prokaryotic cells do not have a nucleus; their genetic material is not enclosed within a membrane.
Correct Answer:
B
— Nucleus
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Q. Which of the following is the conjugate of the complex number 2 - 3i? (2020)
A.
2 + 3i
B.
2 - 3i
C.
3 - 2i
D.
3 + 2i
Show solution
Solution
The conjugate of a complex number a + bi is a - bi. Thus, the conjugate of 2 - 3i is 2 + 3i.
Correct Answer:
A
— 2 + 3i
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Q. Which of the following is the conjugate of the complex number 5 - 3i? (2020)
A.
5 + 3i
B.
5 - 3i
C.
-5 + 3i
D.
-5 - 3i
Show solution
Solution
The conjugate of a complex number a + bi is a - bi. Thus, the conjugate of 5 - 3i is 5 + 3i.
Correct Answer:
A
— 5 + 3i
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Q. Which of the following is the correct dimension for pressure? (2021)
A.
M^1L^-1T^-2
B.
M^1L^1T^-2
C.
M^1L^0T^-2
D.
M^0L^1T^-1
Show solution
Solution
Pressure is defined as force per unit area, hence its dimension is M^1L^-1T^-2.
Correct Answer:
A
— M^1L^-1T^-2
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Q. Which of the following is the correct dimension for velocity? (2021)
A.
M^1L^1T^-1
B.
M^0L^1T^-1
C.
M^1L^0T^-1
D.
M^1L^1T^0
Show solution
Solution
The dimension of velocity is M^0L^1T^-1.
Correct Answer:
B
— M^0L^1T^-1
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Q. Which of the following is the correct dimensional formula for acceleration? (2022)
A.
[M^0 L^1 T^-2]
B.
[M^1 L^0 T^-2]
C.
[M^1 L^1 T^-1]
D.
[M^0 L^0 T^-2]
Show solution
Solution
Acceleration is defined as the change in velocity per unit time, so its dimensional formula is [M^0 L^1 T^-2].
Correct Answer:
A
— [M^0 L^1 T^-2]
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Q. Which of the following is the correct dimensional formula for energy? (2023)
A.
[M^1 L^2 T^-2]
B.
[M^1 L^1 T^-1]
C.
[M^0 L^2 T^-1]
D.
[M^2 L^1 T^-2]
Show solution
Solution
Energy has the dimensional formula [M^1 L^2 T^-2], as it is defined as work done, which is force times distance.
Correct Answer:
A
— [M^1 L^2 T^-2]
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Q. Which of the following is the correct dimensional formula for frequency? (2021)
A.
[M^0 L^0 T^-1]
B.
[M^0 L^1 T^-1]
C.
[M^1 L^0 T^-1]
D.
[M^0 L^0 T^1]
Show solution
Solution
Frequency has the dimensional formula [M^0 L^0 T^-1].
Correct Answer:
A
— [M^0 L^0 T^-1]
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Q. Which of the following is the correct expression for gravitational potential energy (U) of an object of mass m at a height h? (2020)
A.
mgh
B.
mg/h
C.
mgh^2
D.
m^2gh
Show solution
Solution
The gravitational potential energy is given by U = mgh, where h is the height above the reference point.
Correct Answer:
A
— mgh
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Q. Which of the following is the correct IUPAC name for CH3-CH2-CH(OH)-CH3? (2020)
A.
2-butanol
B.
1-butanol
C.
3-butanol
D.
2-pentanol
Show solution
Solution
The compound CH3-CH2-CH(OH)-CH3 is 2-butanol, as the hydroxyl group is on the second carbon.
Correct Answer:
A
— 2-butanol
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Q. Which of the following is the correct method to prepare phenol? (2022)
A.
Hydrolysis of chlorobenzene
B.
Oxidation of benzyl alcohol
C.
Reduction of benzoic acid
D.
Dehydration of phenyl ethanol
Show solution
Solution
Phenol can be prepared by the hydrolysis of chlorobenzene using sodium hydroxide.
Correct Answer:
A
— Hydrolysis of chlorobenzene
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Q. Which of the following is the correct order of magnitude for the speed of light? (2023)
A.
10^6 m/s
B.
10^8 m/s
C.
10^10 m/s
D.
10^12 m/s
Show solution
Solution
The speed of light is approximately 3 x 10^8 m/s.
Correct Answer:
B
— 10^8 m/s
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Q. Which of the following is the correct order of reactivity of haloalkanes in nucleophilic substitution reactions? (2023)
A.
R-I > R-Br > R-Cl > R-F
B.
R-F > R-Cl > R-Br > R-I
C.
R-Cl > R-Br > R-I > R-F
D.
R-Br > R-I > R-Cl > R-F
Show solution
Solution
The reactivity of haloalkanes in nucleophilic substitution reactions decreases in the order R-I > R-Br > R-Cl > R-F due to bond strength.
Correct Answer:
A
— R-I > R-Br > R-Cl > R-F
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Q. Which of the following is the correct order of reactivity of haloalkanes towards nucleophilic substitution? (2021)
A.
R-I > R-Br > R-Cl > R-F
B.
R-F > R-Cl > R-Br > R-I
C.
R-Cl > R-Br > R-I > R-F
D.
R-Br > R-I > R-Cl > R-F
Show solution
Solution
The reactivity of haloalkanes towards nucleophilic substitution is primarily determined by the bond strength of the carbon-halogen bond. Iodine has the weakest bond, making R-I the most reactive, followed by R-Br, R-Cl, and R-F.
Correct Answer:
A
— R-I > R-Br > R-Cl > R-F
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Q. Which of the following is the correct representation of 0.001 in scientific notation? (2023)
A.
1 x 10^-3
B.
1 x 10^3
C.
1 x 10^1
D.
1 x 10^-1
Show solution
Solution
0.001 can be represented as 1 x 10^-3 in scientific notation.
Correct Answer:
A
— 1 x 10^-3
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Q. Which of the following is the correct representation of the unit of energy? (2019)
A.
Joule
B.
Newton-meter
C.
Both A and B
D.
None of the above
Show solution
Solution
Both Joule and Newton-meter represent the same unit of energy.
Correct Answer:
C
— Both A and B
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Q. Which of the following is the correct structure for propan-2-one? (2020)
A.
CH3COCH3
B.
CH3CHO
C.
C2H5CHO
D.
C3H6O
Show solution
Solution
Propan-2-one, also known as acetone, has the structure CH3COCH3, indicating it is a ketone.
Correct Answer:
A
— CH3COCH3
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Q. Which of the following is the correct unit for measuring frequency? (2022)
A.
Hertz
B.
Joule
C.
Watt
D.
Newton
Show solution
Solution
The unit for measuring frequency is Hertz (Hz).
Correct Answer:
A
— Hertz
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Q. Which of the following is the correct unit for measuring pressure? (2020)
A.
Pascal
B.
Joule
C.
Newton
D.
Watt
Show solution
Solution
The SI unit for measuring pressure is Pascal (Pa).
Correct Answer:
A
— Pascal
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Q. Which of the following is the correct unit for pressure? (2020)
A.
Pascal
B.
Joule
C.
Newton
D.
Watt
Show solution
Solution
The SI unit for pressure is Pascal (Pa), which is equivalent to N/m².
Correct Answer:
A
— Pascal
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