BlogNEET100 Most Important NEET Practice Questions You Should Know

100 Most Important NEET Practice Questions You Should Know

NEET 2025 Questions: The NEET 2025 exam is one of the most important medical entrance exams for students aiming to pursue MBBS, BDS, and other medical courses in India. Preparing for NEET 2025 requires a deep understanding of subjects like Physics, Chemistry, and Biology. To excel in this exam, practicing a wide variety of NEET 2025 questions is essential. These questions help students get familiar with the exam pattern, improve their problem-solving skills, and build confidence. Regular practice not only strengthens core concepts but also boosts time management during the actual exam, ensuring success.

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    100 Most Important NEET Practice Questions You Should Know

    NEET Practice Questions

    For students studying for the National Eligibility and Entrance Test, NEET practice questions are crucial. These questions improve problem-solving abilities and time management in addition to helping evaluate knowledge in a variety of subjects, including biology, chemistry, and physics. Practicing a range of NEET multiple-choice questions helps applicants become more comfortable with the style of the test and boost their confidence. Additionally, answering NEET practice questions guarantees a deep comprehension of fundamental ideas, which facilitates tackling difficult subjects on the test. A calculated strategy to getting a high NEET score is to consistently complete challenging practice questions.

    100 Most Important NEET Practice Questions You Should Know

    Biology NEET Questions

    1. Which of the following is NOT a primary role of the skeletal system in the human body?
    a) Production of red blood cells
    b) Storage of minerals
    c) Contraction and relaxation
    d) Support to body
    Answer: c) Contraction and relaxation

    2. What is the main enzyme involved in the Calvin cycle of photosynthesis?
    a) Hexokinase
    b) Rubisco
    c) DNA polymerase
    d) ATP synthase
    Answer: b) Rubisco

    3. Which hormone is responsible for regulating calcium levels in the blood?
    a) Thyroxine
    b) Insulin
    c) Calcitonin
    d) Aldosterone
    Answer: c) Calcitonin

    4. Which stage of the cell cycle requires the longest to finish?
    a) Prophase
    b) Metaphase
    c) Interphase
    d) Anaphase
    Answer: c) Interphase

    5. In humans, the sex of a baby is determined by the sex chromosome inherited from the father because
    a) The mother can only contribute an X chromosome
    b) The father can contribute either an X or Y chromosome
    c) Both parents contribute X chromosomes
    d) The environment plays a role in sex determination
    Answer: b) The father can contribute either an X or Y chromosome

    6. Which of the following diseases is caused by a deficiency of Vitamin D?
    a) Beriberi
    b) Rickets
    c) Scurvy
    d) Pellagra
    Answer: b) Rickets

    7. In which part of the human body are red blood cells produced?
    a) Liver
    b) Kidneys
    c) Bone marrow
    d) Spleen
    Answer: c) Bone marrow

    8. Which of the following represents the correct order of processes in the nitrogen cycle?
    a) Nitrification, Ammonification, Denitrification
    b) Ammonification, Nitrification, Denitrification
    c) Nitrogen fixation, Ammonification, Denitrification
    d) Denitrification, Nitrogen fixation, Nitrification
    Answer: b) Ammonification, Nitrification, Denitrification

    9. Which of the following statements is true for DNA replication?
    a) It occurs in the cytoplasm of eukaryotic cells
    b) It is a conservative process
    c) Helicase is involved in unwinding the DNA strands
    d) The lagging strand is synthesized continuously
    Answer: c) Helicase is involved in unwinding the DNA strands

    10. Which plant hormone is primarily responsible for seed dormancy?
    a) Gibberellin
    b) Ethylene
    c) Cytokinin
    d) Abscisic acid
    Answer: d) Abscisic acid

    11. Which part of the plant is mainly responsible for transpiration?

    A) Roots
    B) Stems
    C) Leaves
    D) Flowers
    Answer: C) Leaves

    12. The genetic material in most organisms is made up of:
    A) RNA
    B) DNA
    C) Proteins
    D) Lipids
    Answer: B) DNA

    13. Which of the following describes a human vestigial organ?

    A) Heart
    B) Liver
    C) Appendix
    D) Spleen
    Answer: C) Appendix

    14. In humans, the exchange of gases between blood and air occurs in:

    A) Trachea
    B) Bronchi
    C) Alveoli
    D) Larynx
    Answer: C) Alveoli

    15. The powerhouse of the cell is:

    A) Nucleus
    B) Mitochondrion
    C) Ribosome
    D) Golgi apparatus
    Answer: B) Mitochondrion

    16. Specifically, what hormone regulates blood glucose levels most effectively?

    A) Insulin
    B) Glucagon
    C) Both A and B
    D) Thyroxine
    Answer: C) Both A and B

    17. The process by which plants convert light energy into chemical energy is:

    A) Respiration
    B) Photosynthesis
    C) Transpiration
    D) Digestion
    Answer: B) Photosynthesis

    18. In humans, digestion of starch begins in the:

    A) Stomach
    B) Mouth
    C) Small intestine
    D) Large intestine
    Answer: B) Mouth

    19. Which type of connective tissue stores fat in the human body?

    A) Cartilage
    B) Adipose tissue
    C) Bone
    D) Blood
    Answer: B) Adipose tissue

    20. The blood group that is considered the universal donor is:

    A) AB+
    B) O-
    C) A+
    D) B+

    Answer: B) O-

    Chemistry NEET Questions

    1. Among the following, which one is NOT considered a widespread property of matter?
    a) Volume
    b) Mass
    c) Temperature
    d) Heat capacity
    Answer: c) Temperature

    2. Which of the following elements has the highest electronegativity?
    a) Oxygen
    b) Fluorine
    c) Chlorine
    d) Nitrogen
    Answer: b) Fluorine

    3. What is the hybridization of carbon atoms in ethyne (C₂H₂)?
    a) sp³
    b) sp²
    c) sp
    d) dsp²
    Answer: c) sp

    4. Which of the following gases is used in the Haber process for ammonia production?
    a) Oxygen
    b) Nitrogen
    c) Hydrogen
    d) Carbon dioxide
    Answer: b) Nitrogen

    5. Which of the following compounds is incapable of forming hydrogen bonds?
    a) Water
    b) Ammonia
    c) Methanol
    d) Carbon tetrachloride
    Answer: d) Carbon tetrachloride

    6. Which of the following statements is correct for an ideal gas?
    a) The intermolecular forces between gas molecules are strong
    b) The volume of the gas molecules is negligible
    c) The temperature of the gas is dependent on its pressure
    d) Gas molecules move in a non-random manner
    Answer: b) The volume of the gas molecules is negligible

    7. What is the strongest acid among these?
    a) HCl
    b) HNO₃
    c) H₂SO₄
    d) HF
    Answer: c) H₂SO₄

    8. Which of the following statements about transition metals is true?
    a) They form colorless compounds
    b) They have low melting points
    c) They show variable oxidation states
    d) They are highly reactive in their elemental forms
    Answer: c) They show variable oxidation states

    9. Which of the following processes involves a decrease in entropy?
    a) Melting of ice
    b) Evaporation of water
    c) Condensation of steam
    d) Sublimation of dry ice
    Answer: c) Condensation of steam

    10. Which quantum number determines the shape of an orbital?
    a) Principal quantum number
    b) Azimuthal quantum number
    c) Magnetic quantum number
    d) Spin quantum number
    Answer: b) Azimuthal quantum number

    11. Which of the following is the most stable oxidation state of iron in its compounds?
    a) +1
    b) +2
    c) +3
    d) +6

    Answer: c) +3

    12. The bond dissociation energy of a C–C bond in ethane is approximately:
    a) 200 kJ/mol
    b) 350 kJ/mol
    c) 410 kJ/mol
    d) 600 kJ/mol

    Answer: b) 350 kJ/mol

    13. Which of the following ions does not show color in aqueous solution?
    a) MnO₄⁻
    b) Fe²⁺
    c) Zn²⁺
    d) Cu²⁺

    Answer: c) Zn²⁺

    14. The isoelectric point (pI) of a neutral amino acid is the pH at which:
    a) All amino groups are protonated
    b) The amino acid exists predominantly as a zwitterion
    c) The amino acid is fully ionized
    d) No charge exists on the amino acid

    Answer: b) The amino acid exists predominantly as a zwitterion

    15. In which of the following reactions does a decrease in entropy occur?
    a) H₂O(l) → H₂O(g)
    b) NH₃(g) → N₂(g) + H₂(g)
    c) CO₂(g) + H₂O(l) → H₂CO₃(aq)
    d) CaCO₃(s) → CaO(s) + CO₂(g)

    Answer: c) CO₂(g) + H₂O(l) → H₂CO₃(aq)

    16. Which of the following elements is a metalloid?
    a) Sodium
    b) Carbon
    c) Silicon
    d) Argon

    Answer: c) Silicon

    17. Which of the following compounds exhibits resonance?
    a) CCl₄
    b) CH₄
    c) O₃
    d) H₂O

    Answer: c) O₃

    18. The hybridization of sulfur in SF₆ is:
    a) sp
    b) sp²
    c) sp³
    d) sp³d²

    Answer: d) sp³d²

    19. Which of the following will have the lowest ionization energy?
    a) Li
    b) Na
    c) K
    d) Rb

    Answer: d) Rb

    20. What is the primary interaction responsible for the formation of a hydrogen bond?
    a) Electrostatic attraction
    b) Covalent bonding
    c) Ionic bonding
    d) Van der Waals forces

    Answer: a) Electrostatic attraction

    21. The product of the reaction between ethene and bromine in the presence of CCl₄ is:
    a) 1,1-dibromoethane
    b) 1,2-dibromoethane
    c) Ethanol
    d) Bromoethanol

    Answer: b) 1,2-dibromoethane

    22. In the electrolysis of molten NaCl, what is produced at the cathode?
    a) Sodium
    b) Chlorine
    c) Hydrogen
    d) Oxygen

    Answer: a) Sodium

    23. The number of unpaired electrons in a Ni²⁺ ion (atomic number of Ni = 28) is:
    a) 0
    b) 2
    c) 4
    d) 6

    Answer: b) 2

    24. Which of the following acids is the strongest?
    a) H₂CO₃
    b) H₃PO₄
    c) HNO₃
    d) H₂SO₄

    Answer: d) H₂SO₄

    25. In which of the following solvents will NaCl have the highest solubility?
    a) Hexane
    b) Benzene
    c) Water
    d) Ethanol

    Answer: c) Water

    26. Which of the following is NOT an example of a colligative property?
    a) Osmotic pressure
    b) Boiling point elevation
    c) Freezing point depression
    d) pH

    Answer: d) pH

    27. What is the IUPAC name of the compound CH₃-CH₂-COOH?
    a) Propanoic acid
    b) Ethanoic acid
    c) Butanoic acid
    d) Methanoic acid

    Answer: a) Propanoic acid

    28. Which of the following molecules is non-polar?
    a) H₂O
    b) NH₃
    c) CO₂
    d) HCl

    Answer: c) CO₂

    29. Which of the following has the highest lattice energy?
    a) NaCl
    b) MgO
    c) KBr
    d) CaF₂

    Answer: b) MgO

    30. The number of significant figures in the measurement 0.00450 m is:
    a) 2
    b) 3
    c) 4
    d) 5

    Answer: b) 3

    Physics NEET Questions

    1. The SI unit of electric current is
    a) Coulomb
    b) Volt
    c) Ampere
    d) Ohm
    Answer: c) Ampere

    2. What is the dimensional formula for angular velocity?
    a) [M¹L¹T⁻¹] b) [M⁰L⁰T⁻¹] c) [M¹L⁰T¹] d) [M⁰L¹T⁻²] Answer: b) [M⁰L⁰T⁻¹]

    3. Which of the following phenomena proves the wave nature of light?
    a) Photoelectric effect
    b) Compton effect
    c) Diffraction
    d) Blackbody radiation
    Answer: c) Diffraction

    4. In a simple harmonic motion, the acceleration of the particle is directly proportional to
    a) Displacement from the mean position
    b) Square of the displacement
    c) Velocity of the particle
    d) Square of the velocity
    Answer: a) Displacement from the mean position

    5. What is a scalar quantity among these?
    a) Force
    b) Velocity
    c) Acceleration
    d) Work
    Answer: d) Work

    6. In which of the following mediums does sound travel the fastest?
    a) Air
    b) Water
    c) Steel
    d) Vacuum
    Answer: c) Steel

    7. Which of the following does not represent an energy unit?
    a) Joule
    b) Electronvolt
    c) Watt
    d) Calorie
    Answer: c) Watt

    8. The focal length of a convex lens is 20 cm. What is the power of the lens?
    a) +5 D
    b) +20 D
    c) -5 D
    d) -20 D
    Answer: a) +5 D

    9. The time period of a pendulum depends on which of the following factors?
    a) Mass of the bob
    b) Length of the string
    c) Amplitude of the swing
    d) Gravitational constant
    Answer: b) Length of the string

    10. What is conserved in the event of a nuclear reaction?
    a) Charge only
    b) Mass number only
    c) Both energy and momentum
    d) Only the number of protons
    Answer: c) Both energy and momentum

    11. A point mass is in motion along a circular path with constant speed. What is the direction of its acceleration at any point?

    A) Tangential to the path
    B) Directed radially inward
    C) Directed radially outward
    D) Perpendicular to the velocity

    12. Which of the following is not a property of electromagnetic waves?

    A) They are longitudinal waves
    B) They do not require a medium to propagate
    C) Their speed in a vacuum is constant
    D) They carry energy

    14. Which of the following laws gives the correct relation between magnetic field and the current producing it?

    A) Coulomb’s Law
    B) Ohm’s Law
    C) Biot-Savart Law
    D) Faraday’s Law

    15. A lens has a power of -2D. What type of lens is it?

    A) Convex lens
    B) Concave lens
    C) Cylindrical lens
    D) Plano-convex lens

    16. The frequency of revolution of an electron in a magnetic field is directly proportional to:

    A) The radius of its path
    B) Its charge
    C) Its speed
    D) Its kinetic energy

    17. Which of the following is true for an ideal gas?

    A) The internal energy depends only on pressure
    B) The internal energy depends only on temperature
    C) The internal energy depends on volume and pressure
    D) The internal energy is constant for all states

    18. In an adiabatic process, the quantity that remains constant is:

    A) Heat
    B) Pressure
    C) Volume
    D) Entropy

    20. The work done in a reversible isothermal expansion of an ideal gas depends on:

    A) Only the change in volume
    B) The initial and final temperature
    C) The number of moles and temperature
    D) The heat supplied to the gas

    Mixed NEET Questions

    1. Of the following, which is NOT a feature of living things?

    A) Growth
    B) Reproduction
    C) Inability to evolve
    D) Metabolism
    Answer: C) Inability to evolve

    2. The enzyme that converts starch to maltose is called:

    A) Amylase
    B) Lipase
    C) Pepsin
    D) Sucrase
    Answer: A) Amylase

    3. In photosynthesis, the light-dependent reactions occur in which part of the chloroplast?

    A) Stroma
    B) Thylakoid membranes
    C) Cytoplasm
    D) Outer membrane
    Answer: B) Thylakoid membranes

    4. Which of the following statements about the structure of DNA is true?

    A) DNA is a single-stranded molecule
    B) DNA contains uracil instead of thymine
    C) DNA has a double helix structure
    D) DNA is composed of amino acids
    Answer: C) DNA has a double helix structure

    5. Which area of the brain controls balance and coordination the most in humans?

    A) Cerebrum
    B) Cerebellum
    C) Medulla oblongata
    D) Thalamus
    Answer: B) Cerebellum

    6. In cells, the main job of ribosomes is to:

    A) Synthesize DNA
    B) Produce proteins
    C) Generate energy
    D) Transport materials
    Answer: B) Produce proteins

    7. Which of the following is an example of an autotrophic organism?

    A) Human
    B) Mushroom
    C) Green algae
    D) Earthworm
    Answer: C) Green algae

    8. The phenotypic ratio of the progeny in a dihybrid cross is usually:

    A) 3:1
    B) 9:3:3:1
    C) 1:2:1
    D) 1:1
    Answer: B) 9:3:3:1

    9. Which of the following procedures entails water passing through a membrane that is selectively permeable?

    A) Diffusion
    B) Osmosis
    C) Active transport
    D) Facilitated diffusion
    Answer: B) Osmosis

    10. The primary structure of proteins is determined by:

    A) The shape of the protein
    B) The sequence of amino acids
    C) The type of bonding
    D) The presence of coenzymes
    Answer: B) The sequence of amino acids

    11.Which hormone is responsible for the fight-or-flight response?

    A) Adrenaline
    B) Insulin
    C) Estrogen
    D) Progesterone
    Answer: A) Adrenaline

    12. Which of the following DOES NOT pertain to a liver function?

    A) Detoxification of drugs
    B) Production of insulin
    C) Synthesis of bile
    D) Storage of glycogen
    Answer: B) Production of insulin

    13. Which kind of link binds the two DNA strands together?

    A) Ionic bonds
    B) Hydrogen bonds
    C) Covalent bonds
    D) Metallic bonds
    Answer: B) Hydrogen bonds

    14. The spleen is responsible for which of the following functions?

    A) Producing insulin
    B) Filtering blood
    C) Digesting food
    D) Absorbing nutrients
    Answer: B) Filtering blood

    15. Which gas is primarily responsible for the greenhouse effect?

    A) Oxygen
    B) Nitrogen
    C) Carbon dioxide
    D) Hydrogen
    Answer: C) Carbon dioxide

    16. What is the primary product of glycolysis?

    A) Lactic acid
    B) Pyruvate
    C) Acetyl-CoA
    D) Glucose
    Answer: B) Pyruvate

    17. Which type of plant hormone promotes cell elongation?

    A) Auxin
    B) Gibberellin
    C) Cytokinin
    D) Ethylene
    Answer: B) Gibberellin

    18. The basic unit of life is known as:

    A) Tissue
    B) Organ
    C) Cell
    D) Organism
    Answer: C) Cell

    19. Which of the following processes is an example of a physical change?

    A) Rusting of iron
    B) Burning wood
    C) Melting of ice
    D) Digestion of food
    Answer: C) Melting of ice

    20. Where does aerobic respiration mostly take place in a cell?

    A) Cytoplasm
    B) Nucleus
    C) Mitochondria
    D) Ribosomes
    Answer: C) Mitochondria

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