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 hormone is secreted by the pancreas to lower blood sugar levels? (2020)
A.
Glucagon
B.
Insulin
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Insulin is secreted by the pancreas and plays a key role in lowering blood sugar levels by facilitating glucose uptake.
Correct Answer:
B
— Insulin
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Q. Which hormone is secreted by the pancreas to raise blood sugar levels? (2019)
A.
Insulin
B.
Glucagon
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Glucagon is secreted by the pancreas and raises blood sugar levels by promoting the conversion of glycogen to glucose in the liver.
Correct Answer:
B
— Glucagon
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Q. Which hormone is secreted by the pancreas to regulate blood sugar levels? (2022)
A.
Insulin
B.
Glucagon
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Insulin is secreted by the pancreas and plays a crucial role in lowering blood sugar levels by facilitating glucose uptake by cells.
Correct Answer:
A
— Insulin
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Q. Which hormone is secreted by the pancreas to regulate metabolism? (2023)
A.
Insulin
B.
Glucagon
C.
Somatostatin
D.
All of the above
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Solution
The pancreas secretes insulin, glucagon, and somatostatin, all of which play roles in regulating metabolism.
Correct Answer:
D
— All of the above
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Q. Which hormone is secreted by the pancreas? (2020)
A.
Insulin
B.
Thyroxine
C.
Cortisol
D.
Epinephrine
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Solution
Insulin is the hormone secreted by the pancreas that helps regulate blood glucose levels.
Correct Answer:
A
— Insulin
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Q. Which hormone regulates blood pressure by affecting blood vessel constriction? (2023)
A.
Insulin
B.
Adrenaline
C.
Aldosterone
D.
Angiotensin II
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Solution
Angiotensin II is a potent vasoconstrictor that plays a key role in regulating blood pressure.
Correct Answer:
D
— Angiotensin II
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Q. Which hormone regulates blood pressure by causing vasoconstriction? (2019)
A.
Insulin
B.
Adrenaline
C.
Aldosterone
D.
Angiotensin II
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Solution
Angiotensin II is a potent vasoconstrictor that plays a key role in regulating blood pressure.
Correct Answer:
D
— Angiotensin II
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Q. Which hormone regulates the production of red blood cells? (2019)
A.
Insulin
B.
Erythropoietin
C.
Adrenaline
D.
Thyroxine
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Solution
Erythropoietin is a hormone produced by the kidneys that stimulates the production of red blood cells in the bone marrow.
Correct Answer:
B
— Erythropoietin
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Q. Which hormone regulates the reabsorption of water in the kidneys? (2021)
A.
Aldosterone
B.
Antidiuretic hormone (ADH)
C.
Insulin
D.
Cortisol
Show solution
Solution
Antidiuretic hormone (ADH) regulates the reabsorption of water in the kidneys, reducing urine output.
Correct Answer:
B
— Antidiuretic hormone (ADH)
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Q. Which hormone regulates the sleep-wake cycle? (2022)
A.
Melatonin
B.
Serotonin
C.
Cortisol
D.
Adrenaline
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Solution
Melatonin is a hormone produced by the pineal gland that regulates the sleep-wake cycle, promoting sleep.
Correct Answer:
A
— Melatonin
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Q. Which hormone triggers ovulation? (2019)
A.
Follicle-stimulating hormone
B.
Luteinizing hormone
C.
Estrogen
D.
Progesterone
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Solution
Luteinizing hormone (LH) triggers ovulation, leading to the release of a mature egg from the ovary.
Correct Answer:
B
— Luteinizing hormone
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Q. Which hormone triggers the onset of labor? (2019)
A.
Oxytocin
B.
Estrogen
C.
Progesterone
D.
Relaxin
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Solution
Oxytocin is the hormone that triggers the onset of labor by stimulating uterine contractions.
Correct Answer:
A
— Oxytocin
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Q. Which hydrocarbon has the highest boiling point?
A.
Methane
B.
Ethane
C.
Propane
D.
Butane
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Solution
Butane has the highest boiling point among the given hydrocarbons due to its larger molecular size.
Correct Answer:
D
— Butane
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Q. Which hydrocarbon is used as a fuel in lighters?
A.
Methane
B.
Butane
C.
Ethylene
D.
Acetylene
Show solution
Solution
Butane is commonly used as a fuel in lighters.
Correct Answer:
B
— Butane
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Q. Which instrument is used to measure atmospheric pressure? (2020)
A.
Barometer
B.
Thermometer
C.
Anemometer
D.
Hygrometer
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Solution
A barometer is used to measure atmospheric pressure.
Correct Answer:
A
— Barometer
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Q. Which ion is primarily responsible for depolarization during an action potential? (2023)
A.
Sodium (Na+)
B.
Potassium (K+)
C.
Calcium (Ca2+)
D.
Chloride (Cl-)
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Solution
Sodium ions (Na+) rush into the neuron during depolarization, causing the membrane potential to become more positive.
Correct Answer:
A
— Sodium (Na+)
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Q. Which ion is primarily responsible for the depolarization phase of an action potential? (2023)
A.
Sodium (Na+)
B.
Potassium (K+)
C.
Calcium (Ca2+)
D.
Chloride (Cl-)
Show solution
Solution
Sodium ions (Na+) rush into the neuron during depolarization, causing the membrane potential to become more positive.
Correct Answer:
A
— Sodium (Na+)
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Q. Which isotope of hydrogen is also known as deuterium? (2021)
A.
Protium
B.
Tritium
C.
Hydrogen-1
D.
Hydrogen-2
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Solution
Deuterium is the isotope of hydrogen with one neutron, also referred to as Hydrogen-2.
Correct Answer:
D
— Hydrogen-2
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Q. Which isotope of hydrogen is also known as heavy hydrogen? (2020)
A.
Protium
B.
Deuterium
C.
Tritium
D.
Hydrogen-1
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Solution
Deuterium is known as heavy hydrogen because it has one neutron in addition to the single proton.
Correct Answer:
B
— Deuterium
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Q. Which kingdom includes organisms that are unicellular and prokaryotic? (2019)
A.
Plantae
B.
Animalia
C.
Fungi
D.
Monera
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Solution
The kingdom Monera includes unicellular and prokaryotic organisms.
Correct Answer:
D
— Monera
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Q. Which kingdom is characterized by organisms that are multicellular and autotrophic? (2022)
A.
Animalia
B.
Fungi
C.
Plantae
D.
Monera
Show solution
Solution
The kingdom Plantae is characterized by multicellular and autotrophic organisms.
Correct Answer:
C
— Plantae
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Q. Which kingdom is characterized by organisms that are primarily autotrophic? (2021)
A.
Animalia
B.
Fungi
C.
Plantae
D.
Monera
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Solution
The kingdom Plantae is characterized by autotrophic organisms that perform photosynthesis.
Correct Answer:
C
— Plantae
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Q. Which law relates the magnetic field around a conductor to the current flowing through it? (2023)
A.
Faraday's Law
B.
Ampere's Law
C.
Ohm's Law
D.
Lenz's Law
Show solution
Solution
Ampere's Law relates the magnetic field around a conductor to the current flowing through it.
Correct Answer:
B
— Ampere's Law
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Q. Which law states that energy cannot be created or destroyed, only transformed? (2021)
A.
Zeroth Law
B.
First Law
C.
Second Law
D.
Third Law
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Solution
The First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed.
Correct Answer:
B
— First Law
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Q. Which law states that for every action, there is an equal and opposite reaction? (2022)
A.
Newton's First Law
B.
Newton's Second Law
C.
Newton's Third Law
D.
Law of Conservation of Momentum
Show solution
Solution
Newton's Third Law states that for every action, there is an equal and opposite reaction.
Correct Answer:
C
— Newton's Third Law
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Q. Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points? (2021)
A.
Ohm's Law
B.
Kirchhoff's Law
C.
Faraday's Law
D.
Ampere's Law
Show solution
Solution
Ohm's Law states that the current (I) through a conductor is directly proportional to the voltage (V) across it, given by the formula V = IR.
Correct Answer:
A
— Ohm's Law
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Q. Which law states that the entropy of an isolated system always increases? (2021)
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The second law of thermodynamics states that the entropy of an isolated system will always increase over time.
Correct Answer:
C
— Second law of thermodynamics
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Q. Which law states that the entropy of an isolated system never decreases? (2021)
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The second law of thermodynamics states that the entropy of an isolated system never decreases over time.
Correct Answer:
C
— Second law of thermodynamics
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Q. Which law states that the heat absorbed or released by a substance is proportional to the change in temperature? (2021)
A.
Boyle's Law
B.
Charles's Law
C.
Newton's Law of Cooling
D.
Calorimetry
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Solution
Calorimetry states that the heat absorbed or released by a substance is proportional to the change in temperature.
Correct Answer:
D
— Calorimetry
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Q. Which law states that the induced electromotive force (emf) in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced emf in a closed loop is equal to the negative rate of change of magnetic flux through the loop.
Correct Answer:
A
— Faraday's Law
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