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NEET 2023 Phase 1 Physics & Chemistry PYQ — Questions with Answers & Solutions

All 96 NEET 2023 Phase 1 Physics & Chemistry previous year questions, each with the correct answer and a step-by-step solution. Free — tap any question to solve it.

NEET 2023 Phase 1 Physics — 54 Questions

  1. 1An electric dipole is placed at an angle of 30° with an electric field of intensity 2 × 10⁵ N/C. It experiences a…
  2. 2An electric dipole is placed at an angle of 30° with an electric field of intensity 2 × 10⁵ N C⁻¹. It experiences a…
  3. 310 resistors (R each) in series with a battery (emf E, negligible internal resistance); then connected in parallel —…
  4. 4The magnitude and direction of the current in the following circuit is:
  5. 5A copper wire of radius 1 mm contains 1022 free electrons per m3. The drift velocity for a 10 A current is (e =…
  6. 6If the galvanometer G does not show any deflection in the circuit shown, the value of R is given by:
  7. 7Wire A has resistance 81 . Wire B (same material, equal length, diameter three times that of A) has resistance:
  8. 8The emf of a cell (internal resistance 1 ) balances at 330 cm on a potentiometer. With a 2 external resistance across…
  9. 9Resistance of a carbon resistor from colour codes is (22000 ± 5%) . The colour of the third band must be:
  10. 10The resistance of a platinum wire is 2 at 0^°C and 6.8 at 80^°C. The temperature coefficient of resistance is:
  11. 11A 12 V, 60 W lamp is connected to secondary of step down transformer, whose primary is connected to ac mains of 220 V.…
  12. 12The net impedance of circuit (as shown in figure) will be (series circuit with R = 10 Ω, an inductor and a capacitor…
  13. 13In a series LCR circuit, the inductance L is 10 mH, capacitance C is 1 μF and resistance R is 100 Ω. The frequency at…
  14. 14An ac source is connected to a capacitor C. Due to decrease in its operating frequency:
  15. 15Two thin lenses are of the same focal length (f), but one is convex and the other one is concave. When they are placed…
  16. 16In the figure shown, what is the equivalent focal length of the combination of lenses (assume that all layers are…
  17. 17Light travels a distance x in time t₁ in air and 10x in time t₂ in another denser medium. What is the critical angle…
  18. 18For the following logic circuit, the truth table is:
  19. 19A full wave rectifier circuit consists of two p-n junction diodes, a centre-tapped transformer, capacitor and a load…
  20. 20Given below are two statements: Statement I: Photovoltaic devices can convert optical radiation into electricity.…
  21. 21If ∮ₛ E · dS = 0 over a closed surface, then:
  22. 22A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force…
  23. 23A bullet is fired from a gun at a speed of 280 m/s in a direction 30^° above the horizontal. The maximum height…
  24. 24The radius of innermost orbit of hydrogen atom is 5.3 × 10⁻¹¹ m. What is the radius of the third allowed orbit of…
  25. 25In hydrogen spectrum, the shortest wavelength in the Balmer series is λ. The shortest wavelength in the Brackett series…
  26. 26An electric dipole is placed as shown in the figure. The electric potential (in 10² V) at point P due to the dipole is…
  27. 27The equivalent capacitance of the system shown in the following circuit is:
  28. 28The ratio of the radius of gyration of a solid sphere (about its own axis) to that of a thin hollow sphere of the same…
  29. 29The angular acceleration of a body moving along the circumference of a circle is directed:
  30. 30In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a…
  31. 31An ac source is connected to a capacitor C. Due to a decrease in its operating frequency,
  32. 32Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The…
  33. 33A football player moving southward suddenly turns eastward with the same speed to avoid an opponent. The force that…
  34. 34A metal wire has mass (0.4 ± 0.002) g, radius (0.3 ± 0.001) mm and length (5 ± 0.02) cm. The maximum possible…
  35. 35The errors in the measurement which arise due to unpredictable fluctuations in temperature and voltage supply are:
  36. 36A wire carrying a current I along the positive x-axis has length L. It is kept in a magnetic field B = (2î + 3ĵ − 4k̂)…
  37. 37A very long conducting wire is bent in a semi-circular shape from A to B as shown in figure. The magnetic field at…
  38. 38The minimum wavelength of X-rays produced by an electron accelerated through a potential difference of V volts is…
  39. 39The work functions of Caesium (Cs), Potassium (K) and Sodium (Na) are 2.14 eV, 2.30 eV and 2.75 eV respectively. If…
  40. 40Two bodies of mass m and 9m are placed a distance R apart. The gravitational potential at the point on the line joining…
  41. 41A satellite orbits just above the earth's surface with period T. If d is the mean density of the earth and G the…
  42. 42The venturi-meter works on:
  43. 43The amount of energy required to form a soap bubble of radius 2 cm from a soap solution is nearly: (surface tension of…
  44. 44A ball is thrown vertically upward with a velocity of 4 m/s from a bridge. The ball strikes the water surface after 4…
  45. 45A vehicle travels half the distance with speed v and the remaining half distance with speed 2v. Its average speed is:
  46. 46A bullet enters a wooden block with speed u and, after travelling 24 cm inside it, its speed reduces to u/3. Assuming…
  47. 47A Carnot engine has an efficiency of 50% when its source is at 327,^°C. The temperature of the sink is
  48. 48Reversible expansion of an ideal gas under isothermal and adiabatic conditions is shown in the figure, where AB is the…
  49. 49The temperature of a gas is −50 °C. To what temperature should the gas be heated so that the rms speed is increased by…
  50. 50The net magnetic flux through any closed surface is:
  51. 51The x–t graph of a particle performing simple harmonic motion is shown in the figure. The acceleration of the particle…
  52. 52The ratio of the fundamental frequency of an open pipe to that of a closed pipe of the same length is:
  53. 53The magnetic energy stored in an inductor of inductance 4 µH carrying a current of 2 A is:
  54. 54For Young's double slit experiment, two statements are given below: Statement I: If the screen is moved away from the…

NEET 2023 Phase 1 Chemistry — 42 Questions

  1. 1Which one of the following statements is not correct?
  2. 2Which one of the following statements is not correct?
  3. 3Identify the final product [D] in the following sequence: CH3CHO ->[(i) LiAlH4][(ii) H3O+] [A] ->[H2SO4][ ] [B] ->[HBr]…
  4. 4Complete the following reaction. Cyclohexanone [A] reacts with HCN to give [B], which on treatment with conc.…
  5. 5Identify the product (A) in the following reaction. The substrate is 1-(4-acetylphenyl)ethan-1-one type compound…
  6. 6Identify the major product obtained when 2-acetylbenzaldehyde (an ortho-disubstituted benzene bearing -CO-CH3 and -CHO)…
  7. 7Identify the final product [D] in the following sequence: CH3CHO ->[(i) LiAlH4][(ii) H3O+] [A] ->[H2SO4, ] [B] ->[HBr]…
  8. 8The compound shown — C6H5-CH=CH-CH(Br)-CH2-CH3 (a benzene ring with a -CH=CH- unit, then an sp^3 carbon bearing Br…
  9. 9Identify the final product in the following sequence: C6H5N2^+ Cl^- ->[CuBr/HBr] (i) ->[Mg/dry ether] (ii) ->[H2O]…
  10. 10Identify the product (P) in the following reaction: (CH3)2CH-CH(OH)-CH3 + HBr -> P (the alcohol is 3-methylbutan-2-ol)
  11. 11Consider the following reaction and identify the major product (P): CH3-CH(CH3)-CH(OH)-CH3 ->[HBr] P…
  12. 12Which amongst the following would be most readily dehydrated under acidic conditions?
  13. 13Consider the following reaction and identify the products A and B: C6H5-CH2-O-C6H5 ->[HI][ ] A + B (benzyl phenyl ether)
  14. 14Amongst the following, the total number of species NOT having eight electrons around the central atom in its outermost…
  15. 15The number of bonds, bonds and lone pairs of electrons in pyridine (C5H5N), respectively, are:
  16. 16The correct order of energies of the molecular orbitals of the N2 molecule is:
  17. 17An ideal gas expands isothermally from 10-3 m^3 to 10-2 m^3 at 300 K against a constant pressure of 105 N,m-2. The work…
  18. 18Reversible expansion of an ideal gas under isothermal and adiabatic conditions is shown in the figure (A->B isothermal…
  19. 19Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?
  20. 20The equilibrium concentrations of the species in the reaction A + B <=> C + D are 2, 3, 10 and 6 mol,L-1, respectively…
  21. 21Consider the following reaction: 2H2(g) + O2(g) -> 2H2O(g), _r H^° = -483.64 kJ. What is the enthalpy change for the…
  22. 22The element expected to form the largest ion to achieve the nearest noble gas configuration is:
  23. 23The conductivity of centimolar solution of KCl at 25,^ is 0.0210 ohm-1cm-1 and the resistance of the cell containing…
  24. 24In Lassaigne's extract of an organic compound, both nitrogen and sulphur are present, which gives a blood-red colour…
  25. 25Which amongst the following compounds would be most readily dehydrated under acidic conditions?
  26. 26Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A…
  27. 27For a certain reaction, the rate =k[A]^2[B]. When the initial concentration of A is tripled keeping the concentration…
  28. 28Given below are two statements: Statement I: A unit formed by the attachment of a base to the 1' position of sugar is…
  29. 29The stability of Cu^2+ salts is more than Cu^+ salts in aqueous solution due to
  30. 30Which of the following statements are INCORRECT? A. All the transition metals except scandium form MO oxides which are…
  31. 31The homoleptic complex from the following complexes is:
  32. 32Which complex compound is the most stable?
  33. 33Which of the following forms a set of a complex and a double salt, respectively?
  34. 34Type of isomerism exhibited by the compounds [Cr(H2O)6]Cl3, [Cr(H2O)5Cl]Cl2.H2O and [Cr(H2O)4Cl2]Cl.2H2O, and the value…
  35. 35The relation between n_m (n_m = the number of permissible values of the magnetic quantum number m) for a given value of…
  36. 36On balancing the given redox reaction, the coefficients a, b and c are found to be, respectively: a Cr2O7^2-(aq) + b…
  37. 37Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion…
  38. 38The weight (g) of two moles of the organic compound obtained by heating sodium ethanoate with sodium hydroxide in the…
  39. 39The mass of CO2 produced by heating 20 g of 20% pure limestone is (at. mass Ca = 40) CaCO3 ->[1200 K] CaO + CO2
  40. 40Which of the following reactions will NOT give a primary amine as the product?
  41. 41Identify the final product in the following reaction sequence: C6H5N2+Cl- ->[(i) Cu2Br2/HBr][(ii) Mg/dry ether][(iii)…
  42. 42Consider the following compounds/species: (i) naphthalene; (ii) cyclopentadienyl anion; (iii) cyclobutadiene; (iv)…

NEET 2023 Phase 1 Biology — 105 Questions

Prefer chapter-wise? Solve NEET Biology PYQs by chapter.

  1. 1Which of the following statements is correct?
  2. 2Which of the following statements is correct
  3. 3Which of the following statements is correct?
  4. 4Expressed Sequence Tags (ESTs) refers to :
  5. 5Expressed Sequence Tags (ESTs) refers to
  6. 6What is the role of RNA polymerase III in the process of transcription in eukaryotes?
  7. 7What is the role of RNA polymerase III in the process of transcription in Eukaryotes?
  8. 8Which of the following stages of meiosis involves division of centromere?
  9. 9Which of the following stages of meiosis involves division of centromere?
  10. 10During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out
  11. 11Which one of the following statements is correct ?
  12. 12Given below are two statements: Statement I: In prokaryotes, the positively charged DNA is held with some negatively…
  13. 13Given below are two statements: Statement I: The codon 'AUG' codes for methionine and phenylalanine. Statement II…
  14. 14Among eukaryotes, replication of DNA takes place in
  15. 15Unequivocal proof that DNA is the genetic material was first proposed by
  16. 16Which one of the following is the sequence on corresponding coding strand, if the sequence on mRNA formed is as follows…
  17. 17How many different proteins does the ribosome consist of?
  18. 18Among eukaryotes, replication of DNA takes place in
  19. 19Select the correct statements. A. Tetrad formation is seen during Leptotene. B. During Anaphase, the centromeres split…
  20. 20Given are two statements. Statement 1: During G0 phase of cell cycle, the cell is metabolically inactive. Statement 2…
  21. 21Match List I with List II: List I A. M Phase B. G2 Phase C. G1 Phase D. G1 Phase List II I. Proteins are synthesized…
  22. 22The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?
  23. 23The phenomenon of pleiotropism refers to
  24. 24Which of the following symbols represents mating between relatives in human pedigree analysis?
  25. 25Frequency of recombination between gene pairs on some chromosome as a measure of the distance between genes to map…
  26. 26Broad palm with single palm crease is visible in a person suffering from
  27. 27Which of the following statements are correct about Klinefelter's Syndrome? A. This disorder was first described by…
  28. 28Match List I with List II: List I (Interaction) A. Mutualism B. Commensalism C. Amensalism D. Parasitism List II…
  29. 29Given below are two statements: Statement I: Gause's 'Competitive Exclusion Principle' states that two closely related…
  30. 30Match List I with List II: List I (Interacting species) A. A Leopard and a Lion in a forest/grassland B. A Cuckoo…
  31. 31Match List I with List II: List I A. Logistic growth B. Exponential growth C. Expanding age pyramid D. Stable age…
  32. 32Carnivorous animals - lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards…
  33. 33Between which among the following, the relationship is not an example of commensalism? (NEET 2023 (Odisha))
  34. 34Cellulose does not form blue colour with Iodine because
  35. 35Given below are two statements: Statement I: A protein is imagined as a line, the left end represented by first amino…
  36. 36Given below are two statements: Statement I: Low temperature preserves the enzyme in a temporarily inactive state…
  37. 37Melonate inhibits the growth of pathogenic bacteria by inhibiting the activity of
  38. 38Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion (A)…
  39. 39Which of the following statements are correct? A. An excessive loss of body fluid from the body switches off…
  40. 40The Cockroach is :
  41. 41In cockroach, excretion is brought about by A. Phallic gland B. Urecose gland C. Nephrocytes D. Fat body E. Collaterial…
  42. 42Match List I with List II: List I A. Taenia B. Paramoecium C. Periplaneta D. Pheretima List II I. Nephridia II.…
  43. 43Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion…
  44. 44Which of the following are NOT considered as the part of endomembrane system? A. Mitochondria B. Endoplasmic Reticulum…
  45. 45Which of the following functions is carried out by cytoskeleton in a cell?
  46. 46How many different proteins does the ribosome consist of?
  47. 47Movement and accumulation of ions across a membrane against their concentration gradient can be explained by
  48. 48Given below are two statements: Statement I: In prokaryotes, the positively charged DNA is held with some negatively…
  49. 49In tissue experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called…
  50. 50The phenomenon which is influenced by auxin and also played a major role in its discovery :
  51. 51Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads…
  52. 52Which hormone promotes internode/petiole elongation in deep water rice?
  53. 53Match List-I with List-II List-I: (A) Auxin (B) Gibberellin (C) Cytokinin (D) Ethylene List-II: (I) Promotes female…
  54. 54Removal of shoot tips is a very useful technique to boost the production of tea-leaves. This is because
  55. 55In order to increase the yield of sugarcane crop, which of the following plant growth regulators should be sprayed?
  56. 56Which of the following is not a cloning vector?
  57. 57Main steps in the formation of Recombinant DNA are given below. Arrange these steps in a correct sequence. A. Insertion…
  58. 58Upon exposure to UV radiation, DNA stained with ethidium bromide will show
  59. 59Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: In…
  60. 60Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The…
  61. 61Identify the pair of heterosporous pteridophytes among the following:
  62. 62What is the function of tassels in the corn cob?
  63. 63Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: A…
  64. 64Large, colourful, fragrant flowers with nectar are seen in:
  65. 65In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are: (NEET 2023)
  66. 66Match List I with List II: List I A. Vasectomy B. Coitus interruptus C. Cervical caps D. Saheli List II I. Oral method…
  67. 67Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A…
  68. 68Which of the following common sexually transmitted diseases is completely curable when detected early and treated…
  69. 69Which of the following are NOT under the control of thyroid hormone? A. Maintenance of water and electrolyte balance B.…
  70. 70Match List I with List II. List I (Hormone): A. CCK B. GIP C. ANF D. ADH List II (Source): I. Kidney II. Heart III.…
  71. 71How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle?
  72. 72The reaction centre in PS II has an absorption maxima at
  73. 73Which micronutrient is required for splitting of water molecule during photosynthesis?
  74. 74Which of the following combinations is required for chemiosmosis?
  75. 75Match List I with List II: List I A. Ringworm B. Filariasis C. Malaria D. Pneumonia List II I. Haemophilus influenzae…
  76. 76Match List I with List II: List I A. Heroin B. Marijuana C. Cocaine D. Morphine List II I. Effect on cardiovascular…
  77. 77In which blood corpuscles, the HIV undergoes replication and produces progeny viruses?
  78. 78In the equation GPP − R − NPP, GPP is Gross Primary Productivity, NPP is Net Primary Productivity, R here is ______.
  79. 79Identify the correct statements: A. Detritivores perform fragmentation. B. The humus is further degraded by some…
  80. 80The unique mammalian characteristics are:
  81. 81Radial symmetry is NOT found in adults of phylum _______.
  82. 82Select the correct statements with reference to chordates. A. Presence of a mid-dorsal, solid and double nerve cord. B.…
  83. 83Which of the following statements are correct? A. Basophils are most abundant cells of the total WBCs. B. Basophils…
  84. 84Match List I with List II: List I A. P-wave B. Q-wave C. QRS complex D. T-wave List II I. Beginning of systole II.…
  85. 85Fatty acids are connected with the respiratory pathway through:
  86. 86Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: ATP…
  87. 87How many times decarboxylation occurs during each TCA cycle?
  88. 88Match List I with List II: List I A. Oxidative decarboxylation B. Glycolysis C. Oxidative phosphorylation D.…
  89. 89Which of the following combinations is required for chemiosmosis?
  90. 90Axile placentation is observed in (NEET 2023 (Phase 1))
  91. 91Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics…
  92. 92Match List I and List II. List I A. Mast cells B. Inner surface of bronchiole C. Blood D. Tubular parts of nephron List…
  93. 93Given below are two statements: Statement I: Ligaments are dense irregular tissue. Statement II: Cartilage is dense…
  94. 94Which of the following statements are correct regarding female reproductive cycle? A. In non-primate mammals cyclical…
  95. 95Given below are two statements: Statement I: Vas deferens receives a duct from seminal vesicle and opens into urethra…
  96. 96Given below are two statements: one is labelled as Assertion A and other is labelled as Reason R. Assertion A…
  97. 97Among 'The Evil Quartet' which one is considered the most important cause driving extinction of species? (NEET 2023)
  98. 98Vital capacity of lung is _______.
  99. 99Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early…
  100. 100Given below are two statements: Statement I: Endarch and exarch are the terms often used for describing the position of…
  101. 101The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear…
  102. 102Match List I with List II: List I (Type of Joint) A. Cartilaginous Joint B. Ball and Socket Joint C. Fibrous Joint D.…
  103. 103Which of the following statements are correct regarding skeletal muscle? A. Muscle bundles are held together by…
  104. 104Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.
  105. 105Given below are two statements: Statement I: RNA mutates at a faster rate. Statement II: Viruses having RNA genome and…
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