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. What is the integrating factor for the equation dy/dx + 2y = 3?
A.
e^(2x)
B.
e^(-2x)
C.
e^(3x)
D.
e^(-3x)
Show solution
Solution
The integrating factor is e^(∫2dx) = e^(2x).
Correct Answer:
A
— e^(2x)
Learn More →
Q. What is the integrating factor for the equation dy/dx + 2y = 6?
A.
e^(2x)
B.
e^(-2x)
C.
e^(6x)
D.
e^(-6x)
Show solution
Solution
The integrating factor is e^(∫2dx) = e^(2x).
Correct Answer:
A
— e^(2x)
Learn More →
Q. What is the ionization energy of an atom? (2023)
A.
Energy required to remove an electron
B.
Energy released when an electron is added
C.
Energy required to excite an electron
D.
Energy required to split the nucleus
Show solution
Solution
Ionization energy is defined as the energy required to remove an electron from an atom in its gaseous state.
Correct Answer:
A
— Energy required to remove an electron
Learn More →
Q. What is the ionization energy of hydrogen in eV? (2019)
A.
1.51 eV
B.
13.6 eV
C.
3.4 eV
D.
10.2 eV
Show solution
Solution
The ionization energy of hydrogen is 13.6 eV, which is the energy required to remove the electron from the ground state.
Correct Answer:
B
— 13.6 eV
Learn More →
Q. What is the IUPAC name for CH3-CH2-CH2-CHO? (2020)
A.
Butanal
B.
Propanal
C.
Pentanal
D.
Hexanal
Show solution
Solution
The IUPAC name for CH3-CH2-CH2-CHO is Butanal, as it has a four-carbon chain with an aldehyde functional group.
Correct Answer:
A
— Butanal
Learn More →
Q. What is the IUPAC name for CH3-CH2-CH2-COOH? (2020)
A.
Butanoic acid
B.
Propanoic acid
C.
Pentanoic acid
D.
Hexanoic acid
Show solution
Solution
The IUPAC name for CH3-CH2-CH2-COOH is Butanoic acid, as it has four carbon atoms.
Correct Answer:
A
— Butanoic acid
Learn More →
Q. What is the IUPAC name for CH3CH2COOH? (2021)
A.
Propanoic acid
B.
Butanoic acid
C.
Acetic acid
D.
Formic acid
Show solution
Solution
CH3CH2COOH is propanoic acid, which has a three-carbon chain with a carboxylic acid functional group.
Correct Answer:
A
— Propanoic acid
Learn More →
Q. What is the IUPAC name of CH3CH2Cl?
A.
Chloroethane
B.
Ethyl chloride
C.
Ethane chloride
D.
Chloromethane
Show solution
Solution
The IUPAC name of CH3CH2Cl is Chloroethane, as it is a two-carbon alkane with a chlorine substituent.
Correct Answer:
A
— Chloroethane
Learn More →
Q. What is the IUPAC name of CH3CH2OH? (2021) 2021
A.
Ethanol
B.
Methanol
C.
Propanol
D.
Butanol
Show solution
Solution
The compound CH3CH2OH is an alcohol with two carbon atoms, which is named Ethanol.
Correct Answer:
A
— Ethanol
Learn More →
Q. What is the IUPAC name of CH3CHO? (2023) 2023
A.
Acetaldehyde
B.
Ethanal
C.
Ethyl aldehyde
D.
Methyl ketone
Show solution
Solution
The IUPAC name of CH3CHO is ethanal, which is the simplest aldehyde.
Correct Answer:
B
— Ethanal
Learn More →
Q. What is the IUPAC name of the carboxylic acid with the formula C3H6O2? (2023)
A.
Propanoic acid
B.
Butanoic acid
C.
Acetic acid
D.
Formic acid
Show solution
Solution
The IUPAC name of C3H6O2 is Propanoic acid, which has a three-carbon chain.
Correct Answer:
A
— Propanoic acid
Learn More →
Q. What is the IUPAC name of the compound CH3CH2NH2? (2021)
A.
Ethylamine
B.
Dimethylamine
C.
Propylamine
D.
Methylamine
Show solution
Solution
The IUPAC name of CH3CH2NH2 is Ethylamine, as it consists of an ethyl group attached to an amine.
Correct Answer:
A
— Ethylamine
Learn More →
Q. What is the IUPAC name of the compound CH3COOH? (2020)
A.
Methanoic acid
B.
Ethanoic acid
C.
Propanoic acid
D.
Butanoic acid
Show solution
Solution
The IUPAC name of CH3COOH is Ethanoic acid, which is commonly known as acetic acid.
Correct Answer:
B
— Ethanoic acid
Learn More →
Q. What is the jelly-like substance inside the cell called? (2018)
A.
Nucleoplasm
B.
Cytoplasm
C.
Protoplasm
D.
Chloroplast
Show solution
Solution
Cytoplasm is the jelly-like substance that fills the cell and contains organelles.
Correct Answer:
B
— Cytoplasm
Learn More →
Q. What is the kinetic energy of a 3 kg object moving at a speed of 4 m/s? (2022)
A.
24 J
B.
12 J
C.
6 J
D.
48 J
Show solution
Solution
Kinetic Energy (KE) = 0.5 × m × v² = 0.5 × 3 kg × (4 m/s)² = 24 J.
Correct Answer:
B
— 12 J
Learn More →
Q. What is the kinetic energy of a 4 kg object moving at a speed of 3 m/s? (2015)
A.
18 J
B.
12 J
C.
24 J
D.
36 J
Show solution
Solution
Kinetic Energy (KE) = 0.5 × mass × velocity² = 0.5 × 4 kg × (3 m/s)² = 18 J.
Correct Answer:
B
— 12 J
Learn More →
Q. What is the Ksp expression for the salt AgCl? (2023)
A.
[Ag+][Cl-]
B.
[AgCl]
C.
[Ag+][Cl-]^2
D.
[AgCl]^2
Show solution
Solution
The solubility product constant (Ksp) for AgCl is expressed as Ksp = [Ag+][Cl-], where [Ag+] and [Cl-] are the molar concentrations of the ions in a saturated solution.
Correct Answer:
A
— [Ag+][Cl-]
Learn More →
Q. What is the Ksp of AgCl if the solubility of AgCl in water is 1.33 x 10^-5 M? (2023)
A.
1.78 x 10^-10
B.
1.33 x 10^-5
C.
1.33 x 10^-10
D.
1.78 x 10^-5
Show solution
Solution
Ksp = [Ag+][Cl-] = (1.33 x 10^-5)(1.33 x 10^-5) = 1.78 x 10^-10.
Correct Answer:
A
— 1.78 x 10^-10
Learn More →
Q. What is the latent heat of fusion if 2000 J of energy is required to melt 0.5 kg of ice? (2021)
A.
2000 J/kg
B.
4000 J/kg
C.
1000 J/kg
D.
500 J/kg
Show solution
Solution
Latent heat of fusion (L) = Q / m = 2000 J / 0.5 kg = 4000 J/kg.
Correct Answer:
A
— 2000 J/kg
Learn More →
Q. What is the latent heat of fusion if 2000 J of heat is required to melt 500 g of ice? (2022)
A.
2000 J/kg
B.
4000 J/kg
C.
1000 J/kg
D.
3000 J/kg
Show solution
Solution
Latent heat of fusion (L) = Q/m = 2000 J / 0.5 kg = 4000 J/kg.
Correct Answer:
A
— 2000 J/kg
Learn More →
Q. What is the latent heat of fusion of ice if 80 calories are required to melt 20 grams of ice? (2020)
A.
40 cal/g
B.
60 cal/g
C.
80 cal/g
D.
100 cal/g
Show solution
Solution
Latent heat of fusion (L_f) = Q / m = 80 cal / 20 g = 4 cal/g.
Correct Answer:
C
— 80 cal/g
Learn More →
Q. What is the latent heat of fusion of ice if 80 g of ice at 0°C melts to water at 0°C, absorbing 3360 J of heat? (2022)
A.
40 J/g
B.
60 J/g
C.
80 J/g
D.
100 J/g
Show solution
Solution
Latent heat of fusion (L) = Q/m = 3360 J / 80 g = 42 J/g.
Correct Answer:
C
— 80 J/g
Learn More →
Q. What is the latent heat of vaporization if 500 g of water at 100°C is converted to steam at the same temperature, absorbing 2260 kJ of heat? (2023)
A.
2260 J/g
B.
450 J/g
C.
334 J/g
D.
1000 J/g
Show solution
Solution
Latent heat of vaporization (L) = Q / m = 2260 kJ / 500 g = 4.52 kJ/g = 2260 J/g.
Correct Answer:
A
— 2260 J/g
Learn More →
Q. What is the latent heat of vaporization of water if 540 J of energy is required to convert 100 g of water at 100°C to steam? (2021)
A.
540 J/g
B.
54 J/g
C.
5.4 J/g
D.
0.54 J/g
Show solution
Solution
Latent heat of vaporization (L) = Q/m = 540 J / 100 g = 5.4 J/g.
Correct Answer:
A
— 540 J/g
Learn More →
Q. What is the least count of a standard vernier caliper? (2021)
A.
0.01 cm
B.
0.1 cm
C.
1 cm
D.
0.001 cm
Show solution
Solution
The least count of a standard vernier caliper is typically 0.01 cm.
Correct Answer:
A
— 0.01 cm
Learn More →
Q. What is the least count of a vernier caliper that can measure up to 0.01 cm? (2021)
A.
0.1 cm
B.
0.01 cm
C.
0.001 cm
D.
1 cm
Show solution
Solution
The least count of a vernier caliper is the smallest measurement it can accurately read, which is 0.01 cm in this case.
Correct Answer:
B
— 0.01 cm
Learn More →
Q. What is the length of a chord that is 6 cm away from the center of a circle with a radius of 10 cm? (2015)
A.
8 cm
B.
12 cm
C.
10 cm
D.
6 cm
Show solution
Solution
Using Pythagoras: (radius)² = (distance from center)² + (half chord)²; 10² = 6² + (half chord)²; half chord = 8 cm, so full chord = 16 cm.
Correct Answer:
A
— 8 cm
Learn More →
Q. What is the length of a chord that is 6 cm from the center of a circle with a radius of 10 cm? (2019)
A.
8 cm
B.
12 cm
C.
10 cm
D.
6 cm
Show solution
Solution
Using Pythagoras: chord length = 2√(r² - d²) = 2√(10² - 6²) = 2√(100 - 36) = 2√64 = 16 cm.
Correct Answer:
A
— 8 cm
Learn More →
Q. What is the length of a diameter of a circle with a radius of 7 cm? (2022)
A.
14 cm
B.
21 cm
C.
7 cm
D.
28 cm
Show solution
Solution
Diameter = 2 × radius; Diameter = 2 × 7 cm = 14 cm.
Correct Answer:
A
— 14 cm
Learn More →
Q. What is the length of an arc of a circle with a radius of 10 cm and a central angle of 60 degrees? (2021) 2021
A.
10.47 cm
B.
15.71 cm
C.
20.94 cm
D.
25.13 cm
Show solution
Solution
Arc length = (θ/360) * 2πr = (60/360) * 2 * 3.14 * 10 = 10.47 cm.
Correct Answer:
A
— 10.47 cm
Learn More →
Showing 2761 to 2790 of 5514 (184 Pages)
