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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)…
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