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Medical Entrance MCQ & Objective Questions

Preparing for medical entrance exams is a crucial step for aspiring doctors in India. Mastering MCQs and objective questions can significantly enhance your exam performance. By practicing these questions, you not only familiarize yourself with the exam format but also strengthen your understanding of important concepts and topics essential for scoring better.

What You Will Practise Here

Key concepts in Biology, Chemistry, and Physics relevant to medical entrance.
Important formulas and definitions that frequently appear in exams.
Diagrams and illustrations to help visualize complex processes.
Practice questions based on previous years' medical entrance exams.
Conceptual clarity through detailed explanations of difficult topics.
Strategies for tackling tricky MCQs and objective questions.
Time management techniques for effective exam preparation.

Exam Relevance

Medical entrance topics are integral to various examinations like NEET, JEE, and state board assessments. These subjects often feature MCQs that test your grasp of fundamental concepts and application skills. Common question patterns include multiple-choice questions that assess both theoretical knowledge and practical understanding, making it vital to practice regularly with important Medical Entrance questions for exams.

Common Mistakes Students Make

Overlooking the importance of reading questions carefully, leading to misinterpretation.
Neglecting to revise basic concepts, which can result in confusion during exams.
Relying solely on rote memorization instead of understanding the underlying principles.
Failing to practice time management, which can hinder performance in timed exams.

FAQs

Question: What are Medical Entrance MCQ questions?
Answer: Medical Entrance MCQ questions are multiple-choice questions designed to test your knowledge and understanding of subjects relevant to medical entrance exams.

Question: How can I improve my performance in Medical Entrance objective questions?
Answer: Regular practice of MCQs, understanding key concepts, and reviewing previous years' papers can significantly improve your performance.

Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence as you prepare for your medical entrance exams.

NEET

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

Solution

In series, total resistance R = R1 + R2 = 4 Ω + 6 Ω = 10 Ω.

Correct Answer: A — 10 ohms

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

Solution

The atomic radius increases as you move down the alkali metal group due to the addition of electron shells.

Correct Answer: A — Increases

Q. What is the trend in reactivity of alkali metals down the group? (2022)

A. Increases
B. Decreases
C. Remains constant
D. Varies irregularly

Solution

The reactivity of alkali metals increases down the group due to the decrease in ionization energy.

Correct Answer: A — Increases

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

Solution

In reverse bias, a diode exhibits a very small reverse saturation current until breakdown occurs.

Correct Answer: D — Very small reverse saturation current

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

Solution

The typical forward voltage drop across a silicon diode is approximately 0.7 V.

Correct Answer: B — 0.7 V

Q. What is the unit cell of a diamond structure? (2022)

A. Face-centered cubic
B. Body-centered cubic
C. Simple cubic
D. Hexagonal

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

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

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

Q. What is the unit cell of diamond? (2022)

A. Face-centered cubic
B. Body-centered cubic
C. Simple cubic
D. Hexagonal

Solution

Diamond has a face-centered cubic (FCC) structure with a complex arrangement of carbon atoms.

Correct Answer: A — Face-centered cubic

Q. What is the unit of energy in the SI system? (2023)

A. Joule
B. Watt
C. Newton
D. Pascal

Solution

The SI unit of energy is the Joule (J).

Correct Answer: A — Joule

Q. What is the unit of inductive reactance? (2020)

A. Ohm
B. Henry
C. Farad
D. Tesla

Solution

Inductive reactance (X_L) is measured in Ohms (Ω), which is the same unit used for resistance.

Correct Answer: A — Ohm

Q. What is the unit of magnetic moment? (2023)

A. Ampere-meter
B. Tesla
C. Weber
D. Newton-meter

Solution

The unit of magnetic moment is Ampere-meter (A·m²).

Correct Answer: A — Ampere-meter

Q. What is the unit of measurement for electric current in the SI system? (2022)

A. Volt
B. Ampere
C. Ohm
D. Coulomb

Solution

The SI unit of electric current is the Ampere (A).

Correct Answer: B — Ampere

Q. What is the unit of measurement for electric current? (2019)

A. Volt
B. Ohm
C. Ampere
D. Watt

Solution

The SI unit of electric current is the Ampere (A).

Correct Answer: C — Ampere

Q. What is the unit of pressure in SI units? (2023)

A. Pascal
B. Bar
C. Atmosphere
D. Torr

Solution

The SI unit of pressure is Pascal (Pa), which is equivalent to N/m².

Correct Answer: A — Pascal

Q. What is the unit of pressure in SI? (2023)

A. Pascal
B. Bar
C. Atmosphere
D. Torr

Solution

The SI unit of pressure is Pascal (Pa), which is equivalent to N/m².

Correct Answer: A — Pascal

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)

Solution

The gas constant R is commonly expressed in the unit L·atm/(K·mol).

Correct Answer: A — L·atm/(K·mol)

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

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

Q. What is the van 't Hoff factor (i) for a non-electrolyte solute? (2023)

A. 1
B. 2
C. 3
D. 0

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

Q. What is the van 't Hoff factor (i) for a solution of glucose (C6H12O6)? (2023)

A. 1
B. 2
C. 3
D. 4

Solution

Glucose does not dissociate in solution, so the van 't Hoff factor (i) = 1.

Correct Answer: A — 1

Q. What is the van 't Hoff factor (i) for a strong electrolyte like Na2SO4 in solution? (2023)

A. 1
B. 2
C. 3
D. 4

Solution

Na2SO4 dissociates into 3 ions (2 Na⁺ and 1 SO4²⁻), so i = 3.

Correct Answer: C — 3

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

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

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

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

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

Solution

Vapor pressure of solution = (moles of solvent / total moles) * P0 = (3 / (2 + 3)) * P0 = 0.6 P0.

Correct Answer: B — 0.6 P0

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

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

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

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

Q. What is the voltage across a 10Ω resistor carrying a current of 2A? (2022)

A. 5V
B. 10V
C. 15V
D. 20V

Solution

Using Ohm's law, V = I * R = 2A * 10Ω = 20V.

Correct Answer: B — 10V

Q. What is the voltage drop across a 10Ω resistor carrying a current of 2A? (2019)

A. 5V
B. 10V
C. 15V
D. 20V

Solution

Using Ohm's law, V = I * R = 2A * 10Ω = 20V.

Correct Answer: B — 10V

Q. What is the voltage drop across a 3Ω resistor carrying a current of 4A? (2019)

A. 6V
B. 8V
C. 12V
D. 15V

Solution

Using Ohm's law, V = I * R = 4A * 3Ω = 12V.

Correct Answer: C — 12V

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

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

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

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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