NEET Mock Test 1

Subject Coverage: Features a balanced 30-question set covering 10 questions each for Biology, Physics, and Chemistry.
Interactive Learning: Provides instant feedback with detailed rationales and strategic hints for every question.
Exam Readiness: Designed to improve speed, accuracy, and application skills for the medical entrance exam.
Level of Difficulty: Curated to match the current NEET-UG pattern and difficulty level.

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1. During the 'S' phase of the cell cycle, what is the status of the DNA content and chromosome number in a diploid cell?

DNA content remains same, and chromosome number doubles.

DNA content doubles, and chromosome number doubles.

DNA content halves, and chromosome number remains same.

DNA content doubles, and chromosome number remains same.

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2. Which of the following is an intensive property of a thermodynamic system?

Enthalpy

Internal energy

Specific heat capacity

Entropy

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3. The threshold frequency for a metal is f₀. When light of frequency 2f₀ is incident on the metal, the max kinetic energy is K. If frequency is 5f₀, what is the new max kinetic energy?

4K

3K

2.5K

5K

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4. Which hormone is responsible for the 'fight or flight' response in humans?

Insulin

Estrogen

Thyroxine

Adrenaline

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5. Which of the following is a 'monomer' of Natural Rubber?

Neoprene

Butadiene

Isoprene

Chloroprene

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6. In the human respiratory system, where does the actual diffusion of gases (O2 and CO2) take place?

Trachea

Alveoli

Bronchioles

Bronchi

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7. Which element has the highest electronegativity?

Oxygen

Chlorine

Nitrogen

Fluorine

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8. Which of the following is an example of a 'vestigial organ' in humans?

Lungs

Vermiform appendix

Heart

Kidneys

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9. A particle moves in a circle of radius R with a constant speed v. What is the magnitude of the average acceleration over a time interval of πR/2v?

v²/πR

Zero

2v²/πR

v²/R

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10. The focal length of a convex lens is 20 cm. What is its power?

2 Diopters

-5 Diopters

5 Diopters

0.05 Diopters

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11. In Young's double slit experiment, if slit distance (d) is halved and screen distance (D) is doubled, the fringe width (β) will:

Become four times.

Remain the same.

Become double.

Be halved.

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12. Which of the following is the most stable carbocation?

CH3+

(CH3)3C+

CH3CH2+

(CH3)2CH+

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13. What is the oxidation state of Phosphorus in H3PO2 (Hypophosphorous acid)?

+5

+3

-3

+1

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14. Deficiency of which vitamin causes 'Pernicious Anemia'?

Vitamin B12

Vitamin K

Vitamin C

Vitamin B1

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15. A capillary tube of radius r is immersed in water (height h). If radius is doubled, the new height is:

h/2

h

2h

h/4

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16. Which of the following processes in flowering plants involves a 'double fertilization' event?

Fusion of one male gamete with the egg and another with the synergid.

Fusion of two male gametes with two different eggs in the same embryo sac.

Fusion of one male gamete with the egg and the other with the antipodal cells.

Fusion of one male gamete with the egg and another with the secondary nucleus.

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17. What is the de Broglie wavelength of an electron accelerated through a potential of 100V?

0.1227 Å

122.7 Å

12.27 Å

1.227 Å

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18. Which compound will exhibit the highest boiling point?

CH3CH2CH2CH3

CH3OCH2CH3

CH3CH2CH2OH

CH3CH2CHO

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19. A body of mass m is taken from Earth's surface to a height equal to radius R. The change in potential energy is:

1/4 mgR

mgR

2mgR

1/2 mgR

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20. The hormone 'Erythropoietin', which stimulates RBC production, is primarily secreted by:

Kidney

Liver

Bone marrow

Spleen

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21. In a p-n junction diode, what happens to the width of the depletion layer under reverse bias?

It increases.

It first increases then decreases.

It decreases.

It remains constant.

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22. Which reagent is used in the Reimer-Tiemann reaction to convert phenol to salicylaldehyde?

CHCl3 and aqueous NaOH

CO2 and NaOH

CH3Cl and AlCl3

KMnO4

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23. In an LCR series circuit, at resonance, what is the value of the power factor?

Unity (1)

Zero

0.5

Infinity

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24. What is the correct order of increasing acidic strength?

H2O < HF < NH3 < CH4

HF < H2O < NH3 < CH4

CH4 < NH3 < H2O < HF

NH3 < CH4 < HF < H2O

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25. Which of the following ecological pyramids is 'always' upright?

Pyramid of Number

Pyramid of Energy

Pyramid of Productivity

Pyramid of Biomass

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26. Which hybridization is found in the XeF4 molecule?

dsp²

sp³d

sp³d²

sp³

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27. In the Hall-Héroult process (Aluminum extraction), what is the role of cryolite (Na3AlF6)?

To act as a catalyst.

To oxidize the alumina.

To prevent the anode from burning.

To lower the melting point and increase conductivity.

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28. The magnetic field at the center of a circular coil of radius r carrying current I is B. If radius is doubled and current is halved, the new field is:

B

B/2

4B

B/4

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29. Which cell organelle is known as the 'suicidal bag' of the cell?

Lysosomes

Mitochondria

Ribosomes

Golgi complex

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30. Mendel's 'Law of Independent Assortment' can be best studied using which of the following?

Monohybrid cross

Test cross

Back cross

Dihybrid cross

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