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. 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?

2v²/πR

v²/R

v²/πR

Zero

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

Vermiform appendix

Heart

Lungs

Kidneys

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3. 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 one male gamete with the egg and another with the secondary nucleus.

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

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

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4. Which compound will exhibit the highest boiling point?

CH3CH2CHO

CH3CH2CH2CH3

CH3OCH2CH3

CH3CH2CH2OH

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5. 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:

4B

B

B/2

B/4

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

Alveoli

Trachea

Bronchi

Bronchioles

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

Ribosomes

Mitochondria

Golgi complex

Lysosomes

8 / 30

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

(CH3)2CH+

CH3CH2+

CH3+

(CH3)3C+

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

KMnO4

CHCl3 and aqueous NaOH

CO2 and NaOH

CH3Cl and AlCl3

10 / 30

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

+5

+1

-3

+3

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

Neoprene

Chloroprene

Isoprene

Butadiene

12 / 30

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

h/2

2h

h/4

h

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

122.7 Å

1.227 Å

0.1227 Å

12.27 Å

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

Enthalpy

Specific heat capacity

Entropy

Internal energy

15 / 30

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

Adrenaline

Thyroxine

Estrogen

Insulin

16 / 30

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

mgR

2mgR

1/2 mgR

1/4 mgR

17 / 30

17. Which hybridization is found in the XeF4 molecule?

sp³d

dsp²

sp³d²

sp³

18 / 30

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

It decreases.

It increases.

It remains constant.

It first increases then decreases.

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

To act as a catalyst.

To oxidize the alumina.

To lower the melting point and increase conductivity.

To prevent the anode from burning.

20 / 30

20. 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.

Be halved.

Become double.

21 / 30

21. Which element has the highest electronegativity?

Nitrogen

Fluorine

Chlorine

Oxygen

22 / 30

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

2 Diopters

0.05 Diopters

5 Diopters

-5 Diopters

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

Zero

Infinity

0.5

Unity (1)

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

Liver

Kidney

Spleen

Bone marrow

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25. 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?

3K

2.5K

5K

4K

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

Pyramid of Number

Pyramid of Productivity

Pyramid of Energy

Pyramid of Biomass

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

H2O < HF < NH3 < CH4

HF < H2O < NH3 < CH4

NH3 < CH4 < HF < H2O

CH4 < NH3 < H2O < HF

28 / 30

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

Monohybrid cross

Dihybrid cross

Back cross

Test cross

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29. 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 halves, and chromosome number remains same.

DNA content doubles, and chromosome number doubles.

DNA content doubles, and chromosome number remains same.

DNA content remains same, and chromosome number doubles.

30 / 30

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

Vitamin B12

Vitamin C

Vitamin B1

Vitamin K

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