Q. What is the osmotic pressure of a solution containing 0.1 moles of glucose in 1 liter of solution at 25 °C? (R = 0.0821 L atm/K mol) (2020)
A.
2.06 atm
B.
0.82 atm
C.
1.01 atm
D.
0.25 atm
Show solution
Solution
Osmotic pressure (π) = nRT/V = (0.1 mol)(0.0821 L atm/K mol)(298 K) = 2.06 atm.
Correct Answer:
A
— 2.06 atm
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Q. What is the osmotic pressure of a solution containing 0.1 moles of solute in 1 liter of solution at 25 °C? (R = 0.0821 L·atm/(K·mol)) (2020)
A.
2.5 atm
B.
0.82 atm
C.
1.0 atm
D.
0.25 atm
Show solution
Solution
Osmotic pressure (π) = nRT/V = (0.1 moles * 0.0821 * 298) / 1 = 2.5 atm.
Correct Answer:
A
— 2.5 atm
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Q. What is the osmotic pressure of a solution containing 0.5 moles of solute in 1 liter of solution at 25 °C? (2021)
A.
12.3 atm
B.
24.6 atm
C.
6.1 atm
D.
3.1 atm
Show solution
Solution
Osmotic pressure (π) = nRT/V = (0.5 moles)(0.0821 L·atm/(K·mol))(298 K) = 12.3 atm.
Correct Answer:
B
— 24.6 atm
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Q. What is the osmotic pressure of a solution containing 0.5 moles of solute in 1 liter of solution at 25 °C? (R = 0.0821 L·atm/(K·mol)) (2021)
A.
12.3 atm
B.
10.2 atm
C.
8.2 atm
D.
6.1 atm
Show solution
Solution
Osmotic pressure (π) = nRT/V = (0.5 moles * 0.0821 L·atm/(K·mol) * 298 K) / 1 L = 12.3 atm.
Correct Answer:
B
— 10.2 atm
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Q. What is the osmotic pressure of a solution containing 2 moles of glucose in 1 liter of solution at 25 °C? (R = 0.0821 L·atm/(K·mol)) (2020)
A.
0.82 atm
B.
1.64 atm
C.
2.46 atm
D.
4.92 atm
Show solution
Solution
Osmotic pressure (π) = nRT/V = (2 moles * 0.0821 L·atm/(K·mol) * 298 K) / 1 L = 4.92 atm.
Correct Answer:
B
— 1.64 atm
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Q. What is the osmotic pressure of a solution containing 2 moles of glucose in 1 liter of solution at 25 °C? (2021)
A.
0.0821 atm
B.
1.0 atm
C.
2.0 atm
D.
4.0 atm
Show solution
Solution
Osmotic pressure (π) = iCRT = 1 * 2 * 0.0821 * 298 = 4.0 atm (i = 1 for glucose).
Correct Answer:
C
— 2.0 atm
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Q. What is the outermost layer of a plant stem called? (2022)
A.
Cortex
B.
Epidermis
C.
Phloem
D.
Xylem
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Solution
The outermost layer of a plant stem is called the epidermis, which protects the plant from environmental damage.
Correct Answer:
B
— Epidermis
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Q. What is the outermost layer of cells in a plant called? (2023)
A.
Cortex
B.
Epidermis
C.
Phloem
D.
Xylem
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Solution
The outermost layer of cells in a plant is called the epidermis, which protects the plant from environmental damage.
Correct Answer:
B
— Epidermis
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Q. What is the outermost whorl of a flower called? (2023)
A.
Calyx
B.
Corolla
C.
Androecium
D.
Gynoecium
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Solution
The outermost whorl of a flower is called the calyx, which is made up of sepals.
Correct Answer:
A
— Calyx
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Q. What is the oxidation state of nitrogen in NH4Cl? (2023)
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Solution
In NH4Cl, the oxidation state of nitrogen is -3, as it is bonded to four hydrogens.
Correct Answer:
A
— -3
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Q. What is the packing efficiency of a body-centered cubic (BCC) structure? (2020)
A.
52%
B.
68%
C.
74%
D.
100%
Show solution
Solution
The packing efficiency of a body-centered cubic (BCC) structure is approximately 68%.
Correct Answer:
B
— 68%
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Q. What is the path difference for the first minimum in a single-slit diffraction pattern? (2021)
A.
λ/2
B.
λ
C.
3λ/2
D.
λ/4
Show solution
Solution
The path difference for the first minimum in single-slit diffraction is λ/2.
Correct Answer:
A
— λ/2
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Q. What is the peak voltage of an AC source if its RMS voltage is 220 V? (2021)
A.
311 V
B.
220 V
C.
155 V
D.
440 V
Show solution
Solution
The peak voltage (V_peak) is related to the RMS voltage (V_rms) by the formula V_peak = V_rms × √2. Therefore, V_peak = 220 V × √2 ≈ 311 V.
Correct Answer:
A
— 311 V
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Q. What is the peak voltage of an AC supply if its RMS voltage is 220 V? (2021)
A.
311 V
B.
220 V
C.
155 V
D.
440 V
Show solution
Solution
The peak voltage (V_peak) is related to the RMS voltage (V_rms) by the formula V_peak = V_rms × √2. Therefore, V_peak = 220 V × √2 ≈ 311 V.
Correct Answer:
A
— 311 V
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Q. What is the percentage error if the measured value is 10.0 and the true value is 9.5? (2021)
A.
5.26%
B.
4.76%
C.
2.5%
D.
10%
Show solution
Solution
Percentage error = (|Measured - True| / True) × 100 = (|10.0 - 9.5| / 9.5) × 100 = 5.26%.
Correct Answer:
B
— 4.76%
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Q. What is the percentage error if the measured value is 20 and the true value is 25? (2021)
A.
20%
B.
25%
C.
5%
D.
10%
Show solution
Solution
Percentage error is calculated as (|True Value - Measured Value| / True Value) * 100 = (|25 - 20| / 25) * 100 = 20%.
Correct Answer:
D
— 10%
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Q. What is the percentage error if the measured value is 20.0 and the true value is 19.5? (2021)
A.
2.56%
B.
1.25%
C.
3.33%
D.
5.00%
Show solution
Solution
Percentage error = (|Measured - True| / True) × 100 = (|20.0 - 19.5| / 19.5) × 100 ≈ 2.56%.
Correct Answer:
A
— 2.56%
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Q. What is the percentage error if the true value is 50 and the measured value is 48? (2022)
Show solution
Solution
Percentage error = |(True value - Measured value) / True value| * 100 = |(50 - 48) / 50| * 100 = 4%.
Correct Answer:
A
— 4%
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Q. What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-3 M? (2019)
Show solution
Solution
pH = -log[H+] = -log(1 x 10^-3) = 3.
Correct Answer:
B
— 3
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Q. What is the pH range of normal human urine? (2022)
A.
4.5 - 5.5
B.
6.0 - 7.0
C.
7.5 - 8.0
D.
8.5 - 9.0
Show solution
Solution
Normal human urine typically has a pH range of 6.0 to 7.0, which can vary based on diet and health.
Correct Answer:
B
— 6.0 - 7.0
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Q. What is the phase difference between two particles executing simple harmonic motion in the same direction with the same amplitude and frequency? (2023)
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Solution
If two particles are executing simple harmonic motion in the same direction with the same amplitude and frequency, their phase difference is 0.
Correct Answer:
A
— 0
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Q. What is the phase difference between two particles executing simple harmonic motion in the same direction with the same frequency? (2021)
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Solution
If they have the same frequency and direction, the phase difference is 0.
Correct Answer:
A
— 0
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Q. What is the phase difference between two particles executing simple harmonic motion in phase? (2021)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
In phase means the phase difference is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase of the cell cycle where DNA is replicated? (2020)
A.
G1 phase
B.
S phase
C.
G2 phase
D.
M phase
Show solution
Solution
The S phase (Synthesis phase) is where DNA replication occurs, resulting in the duplication of chromosomes.
Correct Answer:
B
— S phase
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Q. What is the phase of the cell cycle where the cell grows and prepares for mitosis? (2020)
A.
G1 phase
B.
S phase
C.
G2 phase
D.
M phase
Show solution
Solution
The G1 phase is the first stage of interphase where the cell grows and prepares for DNA replication.
Correct Answer:
A
— G1 phase
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Q. What is the phenomenon called when light bends as it passes from one medium to another? (2020)
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Dispersion
Show solution
Solution
Refraction is the bending of light as it passes from one medium to another due to a change in its speed.
Correct Answer:
B
— Refraction
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Q. What is the phenomenon called when one gene affects the expression of another gene? (2022)
A.
Epistasis
B.
Pleiotropy
C.
Codominance
D.
Incomplete dominance
Show solution
Solution
The phenomenon where one gene affects the expression of another gene is called epistasis.
Correct Answer:
A
— Epistasis
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Q. What is the phenomenon of bending of light called? (2023)
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Dispersion
Show solution
Solution
The bending of light as it passes from one medium to another is called refraction.
Correct Answer:
B
— Refraction
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Q. What is the phenomenon of bending of light when it passes from one medium to another called? (2015)
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Dispersion
Show solution
Solution
The bending of light when it passes from one medium to another is called refraction.
Correct Answer:
B
— Refraction
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Q. What is the Poisson's ratio for a material if a longitudinal strain of 0.005 results in a lateral strain of 0.002? (2019)
A.
0.4
B.
0.5
C.
0.2
D.
0.1
Show solution
Solution
Poisson's ratio (ν) = Lateral strain / Longitudinal strain = 0.002 / 0.005 = 0.4.
Correct Answer:
A
— 0.4
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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.
