NEET 2024 (Re-Examination) | NEET Year Wise Previous Years Questions

Biology

Chemistry

1. The correct decreasing order of atomic radii (pm) of $$\mathrm{Li}, \mathrm{Be}, \mathrm{B}$$ and $$\mathrm{C}$$ is 2. Following data is for a reaction between reactants A and B : .tg {border-collapse:collapse;border-spacing:0;} .tg td{b 3. Given below are two statements: Statement I: Propene on treatment with diborane gives an addition product with the formu 4. Baeyer's reagent is : 5. Which of the following molecules has "NON ZERO" dipole moment value? 6. The major product X formed in the following reaction sequence is : 7. Which indicator is used in the titration of sodium hydroxide against oxalic acid and what is the colour change at the en 8. Match List I with List II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 9. From the following select the one which is not an example of corrosion. 10. Which of the following pairs of ions will have same spin only magnetic moment values within the pair? A. $$\mathrm{Zn}^{ 11. At a given temperature and pressure, the equilibrium constant values for the equilibria are given below: $$\begin{aligne 12. Arrange the following compounds in increasing order of their solubilities in chloroform: $$\mathrm{NaCl}, \mathrm{CH}_3 13. Identify the incorrect statement about $$\mathrm{PCl}_5$$. 14. Choose the correct statement for the work done in the expansion and heat absorbed or released when 5 litres of an ideal 15. The correct IUPAC name of the compound is : 16. Which of the following set of ions act as oxidising agents? 17. Select the incorrect reaction among the following : 18. The UV-visible absorption bands in the spectra of lanthanoid ions are 'X', probably because of the excitation of electro 19. Ethylene diaminetetraacetate ion is a/an: 20. The amount of glucose required to prepare $$250 \mathrm{~mL}$$ of $$\frac{\mathrm{M}}{20}$$ aqueous solution is : (Molar 21. Identify the incorrect statement from the following : 22. For the reaction in equilibrium $$\mathrm{N}_2(\mathrm{~g})+3 \mathrm{H}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH} 23. The major product D formed in the following reaction sequence is : 24. Match List I with List II: .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:sol 25. Which of the following is not an ambidentate ligand? 26. The quantum numbers of four electrons are given below : I. $$n=4 ; I=2 ; m_1=-2 ; s=-\frac{1}{2}$$ II. $$n=3 ; I=2 ; m_1 27. The major product $$\mathrm{C}$$ in the below mentioned reaction is: $$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm 28. The compound that does not undergo Friedel-Crafts alkylation reaction but gives a positive carbylamine test is : 29. For an endothermic reaction: (A) $$\mathrm{q}_{\mathrm{p}}$$ is negative. (B) $$\Delta_{\mathrm{r}} \mathrm{H}$$ is posi 30. $$1.0 \mathrm{~g}$$ of $$\mathrm{H}_2$$ has same number of molecules as in: 31. Which of the following plot represents the variation of $$\ln \mathrm{k}$$ versus $$\frac{1}{\mathrm{~T}}$$ in accordanc 32. A steam volatile organic compound which is immiscible with water has a boiling point of $$250^{\circ} \mathrm{C}$$. Duri 33. Given below are two statements : Statement I : Glycogen is similar to amylose in its structure. Statement II : Glycogen 34. The oxidation states not shown by Mn in given reaction is : $$ 3 \mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+} \longrightarrow 2 35. Given below are two statements: Statement I: The Balmer spectral line for H atom with lowest energy is located at $$\fra 36. Identify D in the following sequence of reactions: 37. Identify the incorrect statement. 38. Match List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so 39. Match List-I with List-II: .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:sol 40. The standard cell potential of the following cell $$\mathrm{Zn}\left|\mathrm{Zn}^{2+}(\mathrm{aq})\right| \mathrm{Fe}^{2 41. Match List I with List II: .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:sol 42. The ratio of solubility of AgCl in 0.1 M KCl solution to the solubility of AgCl in water is: (Given : Solubility product 43. On complete combustion, 0.3 g of an organic compound gave 0.2 g of CO$$_2$$ and 0.1 g of H$$_2$$O. The percentage compos 44. The following reaction method is not suitable for the preparation of the corresponding haloarene products, due to high 45. The alkane that can be oxidized to the corresponding alcohol by KMnO$$_4$$ as per the equation is, when : 46. For the following reaction at $$300 \mathrm{~K}$$ $$\mathrm{A}_2(\mathrm{~g})+3 \mathrm{~B}_2(\mathrm{~g}) \rightarrow 2 47. Rate constants of a reaction at $$500 \mathrm{~K}$$ and $$700 \mathrm{~K}$$ are $$0.04 \mathrm{~s}^{-1}$$ and $$0.14 \ma 48. Mass of glucose $$(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6)$$ required to be dissolved to prepare one litre of its sol 49. $$\left[\mathrm{Mn}_2(\mathrm{CO})_{10}\right]$$ and $$\left[\mathrm{Co}_2(\mathrm{CO})_8\right]$$ structures have A. Me 50. Methyl group attached to a positively charged carbon atom stabilizes the carbocation due to

Physics

1. The magnetic potential energy, when a magnetic bar of magnetic moment $$\vec{m}$$ is placed perpendicular to the magneti 2. A bob is whirled in a horizontal circle by means of a string at an initial speed of $$10 \mathrm{~rpm}$$. If the tension 3. A metal cube of side $$5 \mathrm{~cm}$$ is charged with $$6 \mu \mathrm{C}$$. The surface charge density on the cube is 4. The incorrect relation for a diamagnetic material (all the symbols carry their usual meaning and $$\varepsilon$$ is a sm 5. An ideal fluid is flowing in a non-uniform cross-sectional tube $$X Y$$ (as shown in the figure) from end $$X$$ to end $ 6. The escape velocity for earth is $$v$$. A planet having 9 times mass that of earth and radius, 16 times that of earth, h 7. An electron and an alpha particle are accelerated by the same potential difference. Let $$\lambda_e$$ and $$\lambda_\alp 8. An object moving along horizontal $$x$$-direction with kinetic energy $$10 \mathrm{~J}$$ is displaced through $$x=(3 \ha 9. An object falls from a height of $$10 \mathrm{~m}$$ above the ground. After striking the ground it loses $$50 \%$$ of it 10. In the circuit shown below, the inductance $$L$$ is connected to an ac source. The current flowing in the circuit is $$I 11. A $$12 \mathrm{~pF}$$ capacitor is connected to a $$50 \mathrm{~V}$$ battery, the electrostatic energy stored in the cap 12. A uniform wire of diameter $$d$$ carries a current of $$100 \mathrm{~mA}$$ when the mean drift velocity of electrons in 13. In an electrical circuit, the voltage is measured as $$V=(200 \pm 4)$$ volt and the current is measured as $$I=(20 \pm 0 14. A step up transformer is connected to an ac mains supply of $$220 \mathrm{~V}$$ to operate at $$11000 \mathrm{~V}, 88$$ 15. A particle is moving along $$x$$-axis with its position (x) varying with time $$(t)$$ as $$x=\alpha t^4+\beta t^2+\gamma 16. The radius of gyration of a solid sphere of mass $$5 \mathrm{~kg}$$ about $$X Y$$ is $$5 \mathrm{~m}$$ as shown in figur 17. The I-V characteristics shown above are exhibited by a 18. The magnetic moment and moment of inertia of a magnetic needle as shown are, respectively, $$1.0 \times 10^{-2} \mathrm{ 19. The capacitance of a capacitor with charge $$q$$ and a potential difference $$V$$ depends on 20. Given below are two statements: Statement I : Image formation needs regular reflection and/or refraction. Statement II : 21. A uniform metal wire of length $$l$$ has $$10 \Omega$$ resistance. Now this wire is stretched to a length $$2l$$ and the 22. The spectral series which corresponds to the electronic transition from the levels $$n_2=5,6, \ldots$$ to the level $$n_ 23. Given below are two statements: One is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathb 24. A particle executing simple harmonic motion with amplitude A has the same potential and kinetic energies at the displace 25. Two slits in Young's double slit experiment are $$1.5 \mathrm{~mm}$$ apart and the screen is placed at a distance of $$1 26. Water is used as a coolant in a nuclear reactor because of its 27. The pitch of an error free screw gauge is $$1 \mathrm{~mm}$$ and there are 100 divisions on the circular scale. While me 28. Let us consider two solenoids $$A$$ and $$B$$, made from same magnetic material of relative permeability $$\mu_r$$ and e 29. When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a 30. Interference pattern can be observed due to superposition of the following waves: A. $$y=a \sin \omega t$$ B. $$y=a \sin 31. If $$\phi$$ is the work function of photosensitive material in $$\mathrm{eV}$$ and light of wavelength of numerical valu 32. The electromagnetic radiation which has the smallest wavelength are 33. The equilibrium state of a thermodynamic system is described by A. Pressure B. Total heat C. Temperature D. Volume E. Wo 34. Some energy levels of a molecule are shown in the figure with their wavelengths of transitions. Then : 35. A box of mass $$5 \mathrm{~kg}$$ is pulled by a cord, up along a frictionless plane inclined at $$30^{\circ}$$ with the 36. If the ratio of relative permeability and relative permittivity of a uniform medium is $$1: 4$$. The ratio of the magnit 37. The value of electric potential at a distance of $$9 \mathrm{~cm}$$ from the point charge $$4 \times 10^{-7} \mathrm{C}$ 38. The displacement of a travelling wave $$y=C \sin \frac{2 \pi}{\lambda}$$ (at $$-x$$) where $$t$$ is time, $$x$$ is dista 39. An object of mass $$100 \mathrm{~kg}$$ falls from point $$A$$ to $$B$$ as shown in figure. The change in its weight, cor 40. The potential energy of a particle moving along $$x$$-direction varies as $$V=\frac{A x^2}{\sqrt{x}+B}$$. The dimensions 41. The two-dimensional motion of a particle, described by $$\vec{r}=(\hat{i}+2 \hat{j}) A \cos \omega t$$ is a/an: A. parab 42. A beam of unpolarized light of intensity I0 is passed through a polaroid A, then through another polaroid B, oriented at 43. Select the correct statements among the following : A. Slow neutrons can cause fission in $${ }_{92}^{235} \mathrm{U}$$ 44. Let $$\omega_1, \omega_2$$ and $$\omega_3$$ be the angular speed of the second hand, minute hand and hour hand of a smoo 45. The magnetic moment of an iron bar is $$M$$. It is now bent in such a way that it forms an arc section of a circle subte 46. The given circuit shows a uniform straight wire $$A B$$ of $$40 \mathrm{~cm}$$ length fixed at both ends. In order to ge 47. According to the law of equipartition of energy, the number of vibrational modes of a polyatomic gas of constant $$\gamm 48. The output Y for the inputs A and B of the given logic circuit is: 49. The amplitude of the charge oscillating in a circuit decreases exponentially as $$Q=Q_0 e^{-R t/2 L}$$, where $$Q_0$$ is 50. The steady state current in the circuit shown below is :

NEET 2024 (Re-Examination)

MCQ (Single Correct Answer)

-1

$$\left[\mathrm{Mn}_2(\mathrm{CO})_{10}\right]$$ and $$\left[\mathrm{Co}_2(\mathrm{CO})_8\right]$$ structures have

A. Metal-Metal linkage

B. Terminal CO groups

C. Bridging CO groups

D. Metal in zero oxidation state

Choose the correct answer from the options given below

Only A, B, C

Only B, C, D

Only A, C, D

Only A, B, D

NEET 2024 (Re-Examination)

MCQ (Single Correct Answer)

-1

Methyl group attached to a positively charged carbon atom stabilizes the carbocation due to

–I inductive effect

electromeric effect

hyperconjugation

mesomeric effect

NEET 2024 (Re-Examination)

MCQ (Single Correct Answer)

-1

The magnetic potential energy, when a magnetic bar of magnetic moment $$\vec{m}$$ is placed perpendicular to the magnetic field $$\vec{B}$$ is

$$-\frac{m B}{2}$$

Zero

$$-m B$$

$$m B$$

NEET 2024 (Re-Examination)

MCQ (Single Correct Answer)

-1

A bob is whirled in a horizontal circle by means of a string at an initial speed of $$10 \mathrm{~rpm}$$. If the tension in the string is quadrupled while keeping the radius constant, the new speed is:

20 rpm

40 rpm

5 rpm

10 rpm

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