NEET 2019 Physics & Chemistry PYQ — Questions with Answers & Solutions
All 93 NEET 2019 Physics & Chemistry previous year questions, each with the correct answer and a step-by-step solution. Free — tap any question to solve it.
NEET 2019 Physics — 48 Questions
- 1A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth?
- 2A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the…
- 3Two parallel infinite line charges with linear charge densities +λ C/m and −λ C/m are placed at a distance of 2R in…
- 4Two point charges A and B, having charges +Q and −Q respectively, are placed at a certain distance apart and the force…
- 5Two particles A and B are moving in uniform circular motion in concentric circles of radii r_A and r_B with speeds v_A…
- 6The speed of a swimmer in still water is 20 m/s. The speed of river water is 10 m/s flowing due east. If he is standing…
- 7Two bullets are fired horizontally and simultaneously towards each other from the rooftops of two buildings 100 m apart…
- 8The radius of a circle, the period of revolution, the initial position and the sense of revolution are indicated in the…
- 9A particle starting from rest moves in a circle of radius r. It attains a velocity of V_0 m/s in the nth round. Its…
- 10When an object is shot up a long smooth inclined plane kept at 60^° with the horizontal, it travels a distance x₁ along…
- 11An object of mass 500 g, initially at rest, is acted upon by a variable force whose X-component varies with X as shown…
- 12A force F=20+10y acts on a particle in the y-direction, where F is in newton and y in metre. The work done by this…
- 13Body A of mass 4m moving with speed u collides with another body B of mass 2m at rest. The collision is head-on and…
- 14Six similar bulbs are connected as shown with a DC source of emf E and zero internal resistance. The ratio of power…
- 15In the two circuits shown (same 10 V cell, same 10 resistor; ideal meters, only the order of V and A swapped), the…
- 16Which of the following acts as a circuit protecting device?
- 17A particle P revolves in a circle as shown in the figure. The radius of the circle, the period of revolution, the…
- 18The displacement of a particle executing simple harmonic motion is y = A₀ + A sin ωt + B cos ωt. The amplitude of its…
- 19The average velocity of a particle executing SHM over one complete vibration is
- 20For a p-type semiconductor, which of the following statements is true?
- 21The correct Boolean operation represented by the circuit diagram drawn (an LED Y driven from +6 V through resistor R…
- 22A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:
- 23A particle moving with velocity V is acted upon by three forces represented by the sides of a triangle PQR (taken in…
- 24A block of mass 10 kg is in contact with the inner wall of a hollow cylindrical drum of radius 1 m. The coefficient of…
- 25Two similar thin equi-convex lenses of focal length f each are kept coaxially in contact with each other such that the…
- 26In total internal reflection, when the angle of incidence is equal to the critical angle for the pair of media in…
- 27A copper rod of length 88 cm and an aluminium rod of unknown length have their increase in length independent of the…
- 28The SI unit of thermal conductivity is:
- 29A small hole of cross-sectional area 2 mm² is present near the bottom of a fully filled open tank of height 2 m. Taking…
- 30A soap bubble of radius 1 mm is blown from a detergent solution of surface tension 2.5 × 10⁻² N m⁻¹. The pressure…
- 31A 800 turn coil of effective area 0.05 m² is kept perpendicular to a magnetic field 5 × 10⁻⁵ T. When the plane of the…
- 32In which of the following devices, the eddy current effect is not used?
- 33The total energy of an electron in an atom in an orbit is –3.4 eV. Its kinetic and potential energies are, respectively:
- 34In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on…
- 35In an experiment, the percentage errors in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4%…
- 36The unit of thermal conductivity is:
- 37Ionized hydrogen atoms and α-particles with same momenta enter perpendicular to a constant magnetic field B. The ratio…
- 38A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field B…
- 39An electron is accelerated through a potential difference of 10000 V. Its de Broglie wavelength is, (nearly): (mₑ = 9 ×…
- 40A person in a lift drops a coin. The coin takes time t_1 to reach the floor when the lift is at rest, and time t_2 when…
- 41A person travelling in a straight line moves with a constant velocity v_1 for a certain distance x and with a constant…
- 42A solid cylinder of mass 2 kg and radius 4 cm rotates about its axis at 3 rpm. The torque required to stop it within 2…
- 43A parallel plate capacitor of capacitance 20 µF is being charged by a voltage source whose potential is changing at the…
- 44Increase in temperature of a gas filled in a container would lead to:
- 45When a block of mass M is suspended by a long wire of length L, the length of the wire becomes (L + l). The elastic…
- 46The stress-strain curves are drawn for two different materials X and Y. It is observed that the ultimate strength point…
- 47In which of the following processes, heat is neither absorbed nor released by a system?
- 48A circuit when connected to an AC source of 12 V gives a current of 0.2 A. The same circuit when connected to a DC…
NEET 2019 Chemistry — 45 Questions
- 1The number of sigma ( ) and pi ( ) bonds in pent-2-en-4-yne is
- 2Which of the following diatomic molecular species has only bonds according to Molecular Orbital Theory?
- 3Match the Xenon compounds in Column-I with their structure in Column-II and assign the correct code: Column-I: (a)…
- 4Aluminium chloride in acidified aqueous solution forms a complex 'A', in which the hybridisation state of Al is 'B'.…
- 5The number of sigma ( ) and pi ( ) bonds in pent-2-en-4-yne is
- 6The most suitable reagent for the following conversion is: CH3-C#C-CH3 -> cis-2-butene
- 7Among the following, the reaction that proceeds through an electrophilic substitution is:
- 8An alkene "A" on reaction with O3 and Zn-H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene…
- 9Which of the following reactions are disproportionation reactions? (a) 2Cu+ -> Cu^2+ + Cu (b) 3MnO4^2- + 4H+ -> 2MnO4^-…
- 10The manganate (MnO4^2-) and permanganate (MnO4^-) ions are tetrahedral, due to:
- 11Match the catalyst with the process: Catalyst (i) V2O5 (ii) TiCl4 + Al(CH3)3 (iii) PdCl2 (iv) Nickel complexes Process…
- 12When neutral or faintly alkaline KMnO4 is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is
- 13The oxidation state of Cr in CrO5 is:
- 14The number of sigma ( ) and pi ( ) bonds in pent-2-en-4-yne is
- 15Among the following, the reaction that proceeds through an electrophilic substitution is:
- 16The compound that is most difficult to protonate is:
- 17The correct order of the basic strength of methyl-substituted amines in aqueous solution is:
- 18Which of the following reactions are disproportionation reactions? (a) 2Cu^+ -> Cu^2+ + Cu (b) 3MnO4^2- + 4H^+ ->…
- 19When neutral or faintly alkaline KMnO4 is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is
- 20The oxidation state of Cr in CrO5 is
- 21The mixture that forms a maximum boiling azeotrope is:
- 22For an ideal solution, the correct option is:
- 23The compound that is most difficult to protonate is:
- 24The major product of the following reaction is: benzene-1,2-dicarboxylic acid (phthalic acid) ->[NH3][strong heating] ?
- 25Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:
- 26The non-essential amino acid among the following is:
- 27Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar.…
- 28For the cell reaction 2Fe^3+(aq) + 2I^-(aq) -> 2Fe^2+(aq) + I2(aq), E^ cell = 0.24 V at 298 K. The standard Gibbs…
- 29For a cell involving one electron, E^ cell = 0.59 V at 298 K. The equilibrium constant for the cell reaction is: (Given…
- 30In which case is the change in entropy negative?
- 31The structure of intermediate A in the following reaction is: C6H5CH(CH3)2 + O2 -> A A ->[H+/H2O] C6H5OH + CH3COCH3
- 32For the cell reaction 2Fe^3+(aq) + 2I-(aq) -> 2Fe^2+(aq) + I2(aq), E^ cell = 0.24 V at 298 K. The standard Gibbs energy…
- 33For a cell involving one electron E^ cell = 0.59 V at 298 K, the equilibrium constant for the cell reaction is: (Given…
- 34If the rate constant for a first order reaction is k, the time t required for the completion of 99% of the reaction is…
- 35For the chemical reaction N2(g) + 3H2(g) <=> 2NH3(g) the correct option is:
- 364d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is:
- 37Which of the following series of transitions in the spectrum of the hydrogen atom falls in the visible region?
- 38Among the following, the reaction that proceeds through an electrophilic substitution is:
- 39An alkene A on reaction with O3 then Zn/H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene A…
- 40What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory?
- 41Aluminium chloride in acidified aqueous solution forms a complex 'A', in which the hybridisation state of Al is 'B'.…
- 42The Crystal Field Stabilisation Energy (CFSE) for [CoCl6]^4- is 18000 cm-1. The CFSE for [CoCl4]^2- will be:
- 43For the second period elements the correct increasing order of first ionisation enthalpy is:
- 44The number of moles of hydrogen molecules required to produce 20 moles of ammonia through the Haber process is
- 45The correct order of the basic strength of methyl-substituted amines in aqueous solution is:
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