Q. What is the total resistance of two resistors, 4 ohms and 6 ohms, connected in series? (2021)
A.
10 ohms
B.
24 ohms
C.
2.4 ohms
D.
0.67 ohms
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Solution
In series, total resistance R = R1 + R2 = 4 Ω + 6 Ω = 10 Ω.
Correct Answer:
A
— 10 ohms
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Q. What is the trend in atomic radius as you move down the alkali metal group? (2022)
A.
Increases
B.
Decreases
C.
Remains constant
D.
Increases then decreases
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Solution
The atomic radius increases as you move down the alkali metal group due to the addition of electron shells.
Correct Answer:
A
— Increases
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Q. What is the trend in reactivity of alkali metals down the group? (2022)
A.
Increases
B.
Decreases
C.
Remains constant
D.
Varies irregularly
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Solution
The reactivity of alkali metals increases down the group due to the decrease in ionization energy.
Correct Answer:
A
— Increases
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Q. What is the typical current-voltage characteristic of a diode in reverse bias? (2019)
A.
Linear
B.
Exponential
C.
Constant
D.
Very small reverse saturation current
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Solution
In reverse bias, a diode exhibits a very small reverse saturation current until breakdown occurs.
Correct Answer:
D
— Very small reverse saturation current
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Q. What is the typical forward voltage drop across a silicon diode? (2023)
A.
0.2 V
B.
0.7 V
C.
1.5 V
D.
2.0 V
Show solution
Solution
The typical forward voltage drop across a silicon diode is approximately 0.7 V.
Correct Answer:
B
— 0.7 V
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Q. What is the unit cell of a diamond structure? (2022)
A.
Face-centered cubic
B.
Body-centered cubic
C.
Simple cubic
D.
Hexagonal
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Solution
The diamond structure is based on a face-centered cubic (FCC) unit cell with a specific arrangement of carbon atoms.
Correct Answer:
A
— Face-centered cubic
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Q. What is the unit cell of diamond classified as? (2022)
A.
Simple cubic
B.
Face-centered cubic
C.
Body-centered cubic
D.
Cubic close-packed
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Solution
The diamond structure is classified as a face-centered cubic (FCC) lattice with a basis of two carbon atoms.
Correct Answer:
B
— Face-centered cubic
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Q. What is the unit cell of diamond? (2022)
A.
Face-centered cubic
B.
Body-centered cubic
C.
Simple cubic
D.
Hexagonal
Show solution
Solution
Diamond has a face-centered cubic (FCC) structure with a complex arrangement of carbon atoms.
Correct Answer:
A
— Face-centered cubic
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Q. What is the unit of energy in the SI system? (2023)
A.
Joule
B.
Watt
C.
Newton
D.
Pascal
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Solution
The SI unit of energy is the Joule (J).
Correct Answer:
A
— Joule
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Q. What is the unit of inductive reactance? (2020)
A.
Ohm
B.
Henry
C.
Farad
D.
Tesla
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Solution
Inductive reactance (X_L) is measured in Ohms (Ω), which is the same unit used for resistance.
Correct Answer:
A
— Ohm
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Q. What is the unit of magnetic moment? (2023)
A.
Ampere-meter
B.
Tesla
C.
Weber
D.
Newton-meter
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Solution
The unit of magnetic moment is Ampere-meter (A·m²).
Correct Answer:
A
— Ampere-meter
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Q. What is the unit of measurement for electric current in the SI system? (2022)
A.
Volt
B.
Ampere
C.
Ohm
D.
Coulomb
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Solution
The SI unit of electric current is the Ampere (A).
Correct Answer:
B
— Ampere
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Q. What is the unit of measurement for electric current? (2019)
A.
Volt
B.
Ohm
C.
Ampere
D.
Watt
Show solution
Solution
The SI unit of electric current is the Ampere (A).
Correct Answer:
C
— Ampere
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Q. What is the unit of pressure in SI units? (2023)
A.
Pascal
B.
Bar
C.
Atmosphere
D.
Torr
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Solution
The SI unit of pressure is Pascal (Pa), which is equivalent to N/m².
Correct Answer:
A
— Pascal
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Q. What is the unit of pressure in SI? (2023)
A.
Pascal
B.
Bar
C.
Atmosphere
D.
Torr
Show solution
Solution
The SI unit of pressure is Pascal (Pa), which is equivalent to N/m².
Correct Answer:
A
— Pascal
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Q. What is the unit of the gas constant R in the ideal gas law? (2023)
A.
L·atm/(K·mol)
B.
J/(K·mol)
C.
L·K/(mol·s)
D.
atm/(K·mol)
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Solution
The gas constant R is commonly expressed in the unit L·atm/(K·mol).
Correct Answer:
A
— L·atm/(K·mol)
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Q. What is the value of the gravitational constant (G) in SI units? (2023)
A.
6.67 x 10^-11 N m²/kg²
B.
9.81 m/s²
C.
3.00 x 10^8 m/s
D.
1.60 x 10^-19 C
Show solution
Solution
The gravitational constant (G) is 6.67 x 10^-11 N m²/kg².
Correct Answer:
A
— 6.67 x 10^-11 N m²/kg²
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Q. What is the van 't Hoff factor (i) for a non-electrolyte solute? (2023)
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Solution
The van 't Hoff factor (i) for a non-electrolyte solute is 1, as it does not dissociate into ions.
Correct Answer:
A
— 1
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Q. What is the van 't Hoff factor (i) for a solution of glucose (C6H12O6)? (2023)
Show solution
Solution
Glucose does not dissociate in solution, so the van 't Hoff factor (i) = 1.
Correct Answer:
A
— 1
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Q. What is the van 't Hoff factor (i) for a strong electrolyte like Na2SO4 in solution? (2023)
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Solution
Na2SO4 dissociates into 3 ions (2 Na⁺ and 1 SO4²⁻), so i = 3.
Correct Answer:
C
— 3
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Q. What is the vapor pressure of a solution containing 1 mole of solute in 10 moles of solvent, assuming ideal behavior? (2019)
A.
0.1 P0
B.
0.9 P0
C.
0.5 P0
D.
0.2 P0
Show solution
Solution
Using Raoult's law, the vapor pressure of the solution = (moles of solvent / total moles) * P0 = (10 / 11) * P0 ≈ 0.909 P0.
Correct Answer:
B
— 0.9 P0
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Q. What is the vapor pressure of a solution containing 1 mole of solute in 9 moles of solvent, assuming ideal behavior? (2019)
A.
0.1 P0
B.
0.9 P0
C.
0.5 P0
D.
0.2 P0
Show solution
Solution
Using Raoult's law, the vapor pressure of the solution = (moles of solvent / total moles) * P0 = (9 / 10) * P0 = 0.9 P0.
Correct Answer:
B
— 0.9 P0
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Q. What is the vapor pressure of a solution containing 2 moles of solute and 3 moles of solvent, assuming ideal behavior? (2022)
A.
0.4 P0
B.
0.6 P0
C.
0.2 P0
D.
0.8 P0
Show solution
Solution
Vapor pressure of solution = (moles of solvent / total moles) * P0 = (3 / (2 + 3)) * P0 = 0.6 P0.
Correct Answer:
B
— 0.6 P0
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Q. What is the vapor pressure of a solution containing 2 moles of solute and 4 moles of solvent compared to pure solvent? (2022)
A.
1/3
B.
1/2
C.
2/3
D.
1/4
Show solution
Solution
Vapor pressure lowering = (moles of solute / total moles) = 2 / (2 + 4) = 2/6 = 1/3. Thus, vapor pressure is 1/2 of pure solvent.
Correct Answer:
B
— 1/2
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Q. What is the vapor pressure of a solution containing 2 moles of solute and 4 moles of solvent, assuming ideal behavior? (2022)
A.
0.33 P0
B.
0.50 P0
C.
0.67 P0
D.
0.75 P0
Show solution
Solution
Vapor pressure = (moles of solvent / total moles) * P0 = (4 / (2 + 4)) * P0 = (4/6) * P0 = 0.67 P0.
Correct Answer:
C
— 0.67 P0
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Q. What is the voltage across a 10Ω resistor carrying a current of 2A? (2022)
A.
5V
B.
10V
C.
15V
D.
20V
Show solution
Solution
Using Ohm's law, V = I * R = 2A * 10Ω = 20V.
Correct Answer:
B
— 10V
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Q. What is the voltage drop across a 10Ω resistor carrying a current of 2A? (2019)
A.
5V
B.
10V
C.
15V
D.
20V
Show solution
Solution
Using Ohm's law, V = I * R = 2A * 10Ω = 20V.
Correct Answer:
B
— 10V
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Q. What is the voltage drop across a 3Ω resistor carrying a current of 4A? (2019)
A.
6V
B.
8V
C.
12V
D.
15V
Show solution
Solution
Using Ohm's law, V = I * R = 4A * 3Ω = 12V.
Correct Answer:
C
— 12V
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Q. What is the wavelength of light emitted when an electron transitions from n=3 to n=1 in a hydrogen atom? (2020)
A.
102.6 nm
B.
656.3 nm
C.
486.1 nm
D.
434.0 nm
Show solution
Solution
Using the Rydberg formula, the wavelength for the transition from n=3 to n=1 can be calculated to be approximately 102.6 nm.
Correct Answer:
A
— 102.6 nm
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Q. What is the wavelength of light emitted when an electron transitions from n=4 to n=2 in a hydrogen atom? (2020)
A.
486 nm
B.
656 nm
C.
434 nm
D.
410 nm
Show solution
Solution
Using the Rydberg formula, the wavelength for the transition from n=4 to n=2 can be calculated to be approximately 486 nm.
Correct Answer:
A
— 486 nm
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Showing 1681 to 1710 of 2984 (100 Pages)
NEET MCQ & Objective Questions
The National Eligibility cum Entrance Test (NEET) is a crucial examination for aspiring medical students in India. Scoring well in NEET can open doors to prestigious medical colleges, making it essential for students to prepare effectively. Practicing NEET MCQs and objective questions not only enhances understanding but also boosts confidence, ensuring you are well-prepared for the exam. Engaging with practice questions helps identify important topics and improves your ability to tackle various question formats.
What You Will Practise Here
Human Anatomy and Physiology
Biochemistry and Molecular Biology
Genetics and Evolution
Plant and Animal Physiology
Ecology and Environment
Physics Concepts Relevant to Biology
Important NEET questions on Chemical Bonding and Reactions
Exam Relevance
NEET is aligned with the syllabus of CBSE and various State Boards, ensuring that the topics covered are relevant for both school exams and competitive tests like JEE. Common question patterns include multiple-choice questions that assess conceptual understanding and application of knowledge. By focusing on NEET objective questions, students can familiarize themselves with the exam format and improve their time management skills during the actual test.
Common Mistakes Students Make
Misinterpreting questions due to lack of careful reading.
Overlooking the importance of diagrams and visual aids in biology.
Neglecting to review basic concepts that are foundational for advanced topics.
Confusing similar terms and definitions, especially in biochemistry.
FAQs
Question: How can I improve my NEET MCQ solving skills?Answer: Regular practice with NEET MCQ questions and reviewing explanations for both correct and incorrect answers can significantly enhance your skills.
Question: Are there specific topics I should focus on for NEET preparation?Answer: Yes, focus on high-weightage topics like Human Physiology, Genetics, and Ecology, as they frequently appear in exams.
Start your journey towards success by solving NEET practice MCQs today! Test your understanding, identify your strengths and weaknesses, and prepare effectively for your upcoming exams.