NEET 2022 Phase 2 | NEET Year Wise Previous Years Questions

Biology

Chemistry

1. Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 2. The density of the solution is 2.15 g mL$$-$$1, then mass of 2.5 mL solution in correct significant figures is : 3. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) 4. Two half cell reactions are given below. $$C{o^{3 + }} + {e^ - } \to C{o^{2 + }},\,\,\,\,\,\,\,\,\,E_{C{o^{2 + }}/C{o^{3 5. Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 6. The correct order of first ionization enthalpy for the given four elements is : 7. Predict the order of reactivity of the following four isomers towards SN2 reaction. (I) CH3CH2CH2CH2Cl (II) CH3CH2CH(Cl) 8. Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 9. Which of the following reactions is a part of the large scale industrial preparation of nitric acid? 10. Na2B4O7 $$\buildrel {heat} \over \longrightarrow $$ X + NaBO2 in the above reaction the product "X" is : 11. One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. $$\Delta$$U for this process is : (U 12. Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 13. 0.01 M acetic acid solution is 1% ionised, then pH of this acetic acid solution is : 14. The half life of a first order reaction is 2000 years. If the concentration after 8000 years is 0.02 M, then the initial 15. The product formed from the following reaction sequence is : 16. The decreasing order of boiling points of the following alkanes is : (a) heptane (b) butane (c) 2-methylbutane (d) 2-met 17. Decrease in size from left to right in actinoid series is greater and gradual than that in lanthanoid series due to 18. Which of the following reactions is not an example for nucleophilic addition-elimination reaction? 19. The product formed from the following reaction sequence is 20. Fluorine is a stronger oxidising agent than chlorine because : (a) F-F bond has a low enthalpy of dissociation. (b) Fluo 21. KH value for some gases at the same temperature 'T' are given : .tg {border-collapse:collapse;border-spacing:0;} .tg t 22. Which of the following reactions is a decomposition redox reaction? 23. What is the hybridization shown by C1 and C2 carbons, respectively in the given compound? OHC $$-$$ CH = CH $$-$$ CH2COO 24. Match the reagents (List-I) with the product (List-II) obtained from phenol. .tg {border-collapse:collapse;border-spac 25. The correct order of bond angles in the following compounds/species is : 26. Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 27. If first ionization enthalpies of elements X and Y are 419 kJ mol$$-$$1 and 590 kJ mol$$-$$1, respectively and second io 28. The incorrect statement about denaturation of proteins is : 29. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) 30. Which of the following is the most stable carbocation? 31. Given below are two statements : Statement I : Cr2+ is oxidising and Mn3+ is reducing in nature. Statement II : Sc3+ com 32. Kp for the following reaction is 3.0 at 1000 K. CO2(g) + C(s) $$\rightleftharpoons$$ 2CO(g) What will be the value of Kc 33. A vessel contains 3.2 g of dioxygen gas at STP (273.15 K and 1 atm pressure). The gas is now transferred to another vess 34. Which one of the following reaction sequence is incorrect method to prepare phenol? 35. For a chemical reaction 4A + 3B $$\to$$ 6C + 9D Rate of formation of C is 6 $$\times$$ 10$$-$$2 mol L$$-$$1 s$$-$$1 and 36. Standard electrode potential for the cell with cell reaction Zn(s) + Cu2+(aq) $$\to$$ Zn2+(aq) + Cu(s) is 1.1 V. Calcula 37. The products A and B in the following reaction sequence are : 38. The incorrect method for the synthesis of alkenes is 39. When electromagnetic radiation of wavelength 300 nm falls on the surface of a metal, electrons are emitted with the kine 40. What fraction of Fe exists as Fe(III) in Fe0.96O ? (Consider Fe0.96O to be made up of Fe(II) and Fe(III) only) 41. The incorrect method to synthesize benzaldehyde is

Physics

1. An energy of 484 J is spent in increasing the speed of a flywheel from 60 rpm to 360 rpm. The moment of inertia of the f 2. Let R1 be the radius of the second stationary orbit and R2 be the radius of the fourth stationary orbit of an electron i 3. During a cloudy day, a primary and a secondary rainbow may be created, then the : 4. The reciprocal of resistance is : 5. Two copper vessels A and B have the same base area but of different shapes. A takes twice the volume of water as that B 6. Match List-I with List-II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:soli 7. The distance covered by a body of mass 5 g having linear momentum 0.3 kg m/s in 5 s is : 8. The distance between the two plates of a parallel plate capacitor is doubled and the area of each plate is halved. If C 9. A closely packed coil having 1000 turns has an average radius of 62.8 cm. If current carried by the wire of the coil is 10. The magnetic field of a plane electromagnetic wave is given by $$\overrightarrow B = 3 \times {10^{ - 8}}\cos (1.6 \tim 11. The restoring force of a spring with a block attached to the free end of the spring is represented by 12. Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) 13. A cricket ball is thrown by a player at a speed of 20 m/s in a direction 30$$^\circ$$ above the horizontal. The maximum 14. Given below are two statements Statement I : In an a.c circuit, the current through a capacitor leads the voltage across 15. A cell of emf 4 V and internal resistance 0.5 $$\Omega$$ is connected to a 7.5 $$\Omega$$ external resistance. The termi 16. An ideal gas follows a process described by the equation $$P{V^2} = C$$ from the initial $$({P_1},\,{V_1},\,{T_1})$$ to 17. The shape of the magnetic field lines due to an infinite long, straight current carrying conductor is 18. Identify the equivalent logic gate represented by the given circuit 19. The light rays having photons of energy 4.2 eV are falling on a metal surface having a work function of 2.2 eV. The stop 20. Identify the function which represents a non-periodic motion. 21. An inductor of inductance 2 mH is connected to a 220 V, 50 Hz ac source. Let the inductive reactance in the circuit is X 22. The ratio of the magnitude of the magnetic field and electric field intensity of a plane electromagnetic wave in free sp 23. The threshold frequency of a photoelectric metal is v0. If light of frequency 4v0 is incident on this metal, then the ma 24. The equivalent resistance of the infinite network given below is : 25. If the screen is moved away from the plane of the slits in a Young's double slit experiment, then the : 26. If $$\overrightarrow F = 2\widehat i + \widehat j - \widehat k$$ and $$\overrightarrow r = 3\widehat i + 2\widehat j - 27. The physical quantity that has the same dimensional formula as pressure is 28. The effective capacitances of two capacitors are 3 $$\mu$$F and 16 $$\mu$$F, when they are connected in series and paral 29. After passing through a polariser a linearly polarised light of intensity I is incident on an analyser making an angle o 30. In the diagram shown, the normal reaction force between 2 kg and 1 kg is (Consider the surface, to be smooth) : (Given g 31. The incorrect statement about the property of a Zener diode is : 32. A gravitational field is present in a region and a mass is shifted from A to B through different paths as shown. If W1, 33. A standard filament lamp consumes 100 W when connected to 200 V ac mains supply. The peak current through the bulb will 34. The terminal velocity of a copper ball of radius 5 mm falling through a tank of oil at room temperature is 10 cm s$$-$$1 35. In a gravitational field, the gravitational potential is given by, $$V = - {K \over x}$$ (J/Kg). The gravitational fiel 36. The percentage error in the measurement of g is : (Given that $$g = {{4{\pi ^2}L} \over {{T^2}}}$$, $$L = (10\, \pm \,0. 37. Two very long, straight, parallel conductors A and B carry current of 5 A and 10 A respectively and are at a distance of 38. The magnetic field on the axis of a circular loop of radius 100 cm carrying current $$I = \sqrt 2 \,A$$, at point 1 m aw 39. Two rods one made of copper and other made of steel of same length and same cross sectional area are joined together. Th 40. The ratio of Coulomb's electrostatic force to the gravitational force between an electron and a proton separated by some 41. The position-time (x - t) graph for positive acceleration is 42. Six charges +q, $$-$$q, +q, $$-$$q, +q, and $$-$$q are fixed at the corners of a hexagon of side d as shown in the figur 43. An astronomical refracting telescope is being used by an observer to observe planets in normal adjustment. The focal len 44. The magnetic flux linked to a circular coil of radius R is $$\phi = 2{t^3} + 4{t^2} + 2t + 5$$ Wb The magnitude of indu 45. Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains helium (monoa 46. An organ pipe filled with a gas at 27$$^\circ$$C resonates at 400 Hz in its fundamental mode. If it is filled with the s 47. The sliding contact C is at one fourth of the length of the potentiometer wire (AB) from A as shown in the circuit diagr

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Standard electrode potential for the cell with cell reaction

Zn(s) + Cu²⁺(aq) $$\to$$ Zn²⁺(aq) + Cu(s)

is 1.1 V. Calculate the standard Gibbs energy change for the cell reaction. (Given F = 96487 C mol^$$-$$1)

$$-$$200.27 J mol^$$-$$1

$$-$$200.27 kJ mol^$$-$$1

$$-$$212.27 kJ mol^$$-$$1

$$-$$212.27 J mol^$$-$$1

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

The products A and B in the following reaction sequence are :

NEET 2022 Phase 2 Chemistry - Hydrocarbons Question 6 English

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

The incorrect method for the synthesis of alkenes is

Treating vicinal dihalides with Zn metal

Treating of alkynes with Na in liquid NH₃

Heating alkyl halides with alcoholic KOH

Treating alkyl halides in aqueous KOH solution

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

When electromagnetic radiation of wavelength 300 nm falls on the surface of a metal, electrons are emitted with the kinetic energy of 1.68 $$\times$$ 10⁵ J mol^$$-$$1. What is the minimum energy needed to remove an electron from the metal?

(h = 6.626 $$\times$$ 10^$$-$$34 Js, c = 3 $$\times$$ 10⁸ ms^$$-$$1, N_A = 6.022 $$\times$$ 10²³ mol^$$-$$1)

2.31 $$\times$$ 10⁵ J mol^$$-$$1

2.31 $$\times$$ 10⁶ J mol^$$-$$1

3.84 $$\times$$ 10⁴ J mol^$$-$$1

3.84 $$\times$$ 10^$$-$$19 J mol^$$-$$1

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