2021 · 25 Feb · Shift 2
76 questions · JEE MainGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
2021 · 25 Feb · Shift 2
76 questions · JEE Main
HydrocarbonsChemistry · 2 questionsAlcohols Phenols and EthersChemistry · 1 questionsIonic EquilibriumChemistry · 1 questionsChemical Bonding and Molecular StructureChemistry · 1 questionsCoordination CompoundsChemistry · 2 questionsBasics of Organic ChemistryChemistry · 1 questionsCompounds Containing NitrogenChemistry · 2 questionsSalt AnalysisChemistry · 1 questionsBiomoleculesChemistry · 1 questionsPractical Organic ChemistryChemistry · 2 questionsAldehydes Ketones and Carboxylic AcidsChemistry · 2 questionsPeriodic Table and PeriodicityChemistry · 1 questionsElectrochemistryChemistry · 1 questionsSolutionsChemistry · 1 questionsStructure of AtomChemistry · 2 questionsThermodynamicsChemistry · 1 questionsChemical Kinetics and Nuclear ChemistryChemistry · 1 questionsParabolaMathematics · 1 questionsFunctionsMathematics · 2 questionsIndefinite IntegralsMathematics · 1 questionsProbabilityMathematics · 2 questionsQuadratic Equation and InequalitiesMathematics · 1 questionsTrigonometric Ratio and IdentitesMathematics · 1 questionsInverse Trigonometric FunctionsMathematics · 1 questionsMatrices and DeterminantsMathematics · 3 questionsComplex NumbersMathematics · 1 questionsSequences and SeriesMathematics · 1 questionsDefinite IntegrationMathematics · 2 questionsEllipseMathematics · 1 questionsHyperbolaMathematics · 1 questionsBinomial TheoremMathematics · 2 questions3D GeometryMathematics · 1 questionsLimits Continuity and DifferentiabilityMathematics · 2 questionsVector AlgebraMathematics · 1 questionsDifferential EquationsMathematics · 1 questionsAlternating CurrentPhysics · 2 questionsCapacitorPhysics · 1 questionsRotational MotionPhysics · 1 questionsDual Nature of RadiationPhysics · 2 questionsWave OpticsPhysics · 1 questionsMagnetic Properties of MatterPhysics · 1 questionsHeat and ThermodynamicsPhysics · 2 questionsElectrostaticsPhysics · 3 questionsAtoms and NucleiPhysics · 1 questionsSimple Harmonic MotionPhysics · 3 questionsUnits and MeasurementsPhysics · 1 questionsElectronic DevicesPhysics · 2 questionsMotion in A Straight LinePhysics · 1 questionsVector AlgebraPhysics · 1 questionsWavesPhysics · 1 questionsGravitationPhysics · 1 questionsElectromagnetic WavesPhysics · 2 questionsCenter of MassPhysics · 1 questionsCurrent ElectricityPhysics · 1 questions
- Q1.The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is :Chemistry · Hydrocarbons · MCQ
- Q2.What is 'X' in the given reaction? Includes diagramChemistry · Alcohols Phenols and Ethers · MCQ
- Q3.The solubility of in water is : [Given : The solubility product of in water = 5.5 10 6]Chemistry · Ionic Equilibrium · MCQ
- Q4.Which among the following species has unequal bond lengths?Chemistry · Chemical Bonding and Molecular Structure · MCQ
- Q5.In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment? (i) (ii) (iii) (iv)Chemistry · Coordination Compounds · MCQ
- Q6.The correct order of acid character of the following compounds is : Includes diagramChemistry · Basics of Organic Chemistry · MCQ
- Q7.The major product of the following reaction is : Includes diagramChemistry · Hydrocarbons · MCQ
- Q8.Correct statement about the given chemical reaction is : Includes diagramChemistry · Compounds Containing Nitrogen · MCQ
- Q9.Given below are two statements : Statement I : The identification of is carried out by dimethyl glyoxime in the presence of . Statement II : The dimethyl glyoxime is a bidentate neutral ligand. In the light of the above…Chemistry · Salt Analysis · MCQ
- Q10.Carbylamine test is used to detect the presence of primary amino group in an organic compound. Which of the following compound is formed when this test is performed with aniline?Chemistry · Compounds Containing Nitrogen · MCQ
- Q11.Which of the following is correct structure of -anomer of maltose?Chemistry · Biomolecules · MCQ
- Q12.Which of the following compound is added to the sodium extract before addition of silver nitrate for testing of halogens?Chemistry · Practical Organic Chemistry · MCQ
- Q13.The major product of the following reaction is : Includes diagramChemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q14.The correct order of bond dissociation enthalpy of halogens is :Chemistry · Periodic Table and Periodicity · MCQ
- Q15.Copper reduces NO into and depending upon the concentration of in solution. (Assuming fixed [Cu2+] and PNO = PNO2), the concentration at which the thermodynamic tendency for reduction of NO into …Chemistry · Electrochemistry · Numerical
- Q16.The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is BM.Chemistry · Coordination Compounds · Numerical
- Q17.If a compound AB dissociates to the extent of 75% in an aqueous solution, the molality of the solution which shows a 2.5 K rise in the boiling point of the solution is molal. (Rounded off to the nearest integer)…Chemistry · Solutions · Numerical
- Q18.Electromagnetic radiation of wavelength 663 nm is just sufficient to ionise the atom of metal A. The ionization enegy of metal A in kJ mol 1 is . (Rounded off to the nearest integer) [h = 6.63 10 …Chemistry · Structure of Atom · Numerical
- Q19.Consider titration of NaOH solution versus 1.25 M oxalic acid solution. At the end point following burette readings were obtained. (i) 4.5 mL (ii) 4.5 mL (iii) 4.4 mL (iv) 4.4 mL (v) 4.4 mL If the volume of oxalic acid taken was 10.0 mL…Chemistry · Practical Organic Chemistry · Numerical
- Q20.Five moles of an ideal gas at 293 K is expanded isothermally from an initial pressure of 2.1 MPa to 1.3 MPa against at constant external pressure 4.3 MPa. The heat transferred in this process is kJ mol 1.…Chemistry · Thermodynamics · Numerical
- Q21.The number of compound/s given below which contain/s -COOH group is . (Integer answer) (A) Sulphanilic acid (B) Picric acid (C) Aspirin (D) Ascorbic acidChemistry · Aldehydes Ketones and Carboxylic Acids · Numerical
- Q22.The rate constant of a reaction increases by five times on increase in temperature from 27 C to 52 C. The value of activation energy in kJ mol 1 is . (Rounded off to the nearest integer) [R =…Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
- Q23.Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is . (Integer answer) (A) Li (B) Na (C) Rb (D) CsChemistry · Structure of Atom · Numerical
- Q24.The shortest distance between the line x y = 1 and the curve x2 = 2y is :Mathematics · Parabola · MCQ
- Q25.A function f(x) is given by , then the sum of the series …Mathematics · Functions · MCQ
- Q26.Let x denote the total number of one-one functions from a set A with 3 elements to a set B with 5 elements and y denote the total number of one-one functions form the set A to the set A B. Then :Mathematics · Functions · MCQ
- Q27.The integral , x > 0, is equal to : (where c is a constant of integration)Mathematics · Indefinite Integrals · MCQ
- Q28.Let A be a set of all 4-digit natural numbers whose exactly one digit is 7. Then the probability that a randomly chosen element of A leaves remainder 2 when divided by 5 is :Mathematics · Probability · MCQ
- Q29.Let and be the roots of x2 6x 2 = 0. If an = n n for n 1, then the value of is :Mathematics · Quadratic Equation and Inequalities · MCQ
- Q30.If 0 < x, y < and cosx + cosy cos(x + y) =, then sinx + cosy is equal to :Mathematics · Trigonometric Ratio and Identites · MCQ
- Q31.cosec is equal to :Mathematics · Inverse Trigonometric Functions · MCQ
- Q32.Let A be a 3 3 matrix with det(A) = 4. Let Ri denote the ith row of A. If a matrix B is obtained by performing the operation R2 2R2 + 5R3 on 2A, then det(B) is equal to :Mathematics · Matrices and Determinants · MCQ
- Q33.If , R are such that 1 2i (here i2 = 1) is a root of z2 + z + = 0, then () is equal to :Mathematics · Complex Numbers · MCQ
- Q34.The minimum value of , where a, and a > 0, is equal to :Mathematics · Sequences and Series · MCQ
- Q35.If , then :Mathematics · Definite Integration · MCQ
- Q36.In a group of 400 people, 160 are smokers and non-vegetarian; 100 are smokers and vegetarian and the remaining 140 are non-smokers and vegetarian. Their chances of getting a particular chest disorder are 35%, 20% and 10% respectively. A…Mathematics · Probability · MCQ
- Q37.If for the matrix, , , then the value of is :Mathematics · Matrices and Determinants · MCQ
- Q38.If the curve x2 + 2y2 = 2 intersects the line x + y = 1 at two points P and Q, then the angle subtended by the line segment PQ at the origin is :Mathematics · Ellipse · MCQ
- Q39.The following system of linear equations 2x + 3y + 2z = 9 3x + 2y + 2z = 9 x y + 4z = 8Mathematics · Matrices and Determinants · MCQ
- Q40.A hyperbola passes through the foci of the ellipse and its transverse and conjugate axes coincide with major and minor axes of the ellipse, respectively. If the product of their…Mathematics · Hyperbola · MCQ
- Q41.If the remainder when x is divided by 4 is 3, then the remainder when (2020 + x)2022 is divided by 8 is .Mathematics · Binomial Theorem · Numerical
- Q42.The total number of two digit numbers 'n', such that 3n + 7n is a multiple of 10, is .Mathematics · Binomial Theorem · Numerical
- Q43.The value of is .Mathematics · Definite Integration · Numerical
- Q44.A line 'l' passing through origin is perpendicular to the lines …Mathematics · 3D Geometry · Numerical
- Q45.A function f is defined on [ 3, 3] as where [x] denotes the greatest integer x.…Mathematics · Limits Continuity and Differentiability · Numerical
- Q46.Let and . If the area of the parallelogram whose adjacent sides are represented by the vectors …Mathematics · Vector Algebra · Numerical
- Q47.If exists and is equal to b, then the value of a 2b is .Mathematics · Limits Continuity and Differentiability · Numerical
- Q48.If the curve, y = y(x) represented by the solution of the differential equation (2xy2 y)dx + xdy = 0, passes through the intersection of the lines, 2x 3y = 1 and 3x + 2y = 8, then |y(1)| is equal to .Mathematics · Differential Equations · Numerical
- Q49.An LCR circuit contains resistance of 110 and a supply of 220 V at 300 rad/s angular frequency. If only capacitance is removed from the circuit, current lags behind the voltage by 45 . If on the other hand, only inductor…Physics · Alternating Current · MCQ
- Q50.An electron with kinetic energy K1 enters between parallel plates of a capacitor at an angle '' with the plates. It leaves the plates at angle '' with kinetic energy K2. Then the ratio of kinetic energies K1 : K2 will be :Physics · Capacitor · MCQ
- Q51.A sphere of radius 'a' and mass 'm' rolls along a horizontal plane with constant speed v0. It encounters an inclined plane at angle and climbs upward. Assuming that it rolls without slipping, how far up the sphere will travel? Includes diagramPhysics · Rotational Motion · MCQ
- Q52.An electron of mass me and a proton of mass mp = 1836 me are moving with the same speed. The ratio of their de Broglie wavelength will be :Physics · Dual Nature of Radiation · MCQ
- Q53.Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter 0.1 m. If the diameter of the pinhole is slightly increased, it will affect the diffraction pattern such that:Physics · Wave Optics · MCQ
- Q54.In a ferromagnetic material, below the curie temperature, a domain is defined as :Physics · Magnetic Properties of Matter · MCQ
- Q55.Given below are two statements : Statement I : In a diatomic molecule, the rotational energy at a given temperature obeys Maxwell's distribution. Statement II : In a diatomic molecule, the rotational energy at a given temperature equals…Physics · Heat and Thermodynamics · MCQ
- Q56.Match List I with List II. Choose the correct answer from the options given below : Includes tablePhysics · Alternating Current · MCQ
- Q57.A charge 'q' is placed at one corner of a cube as shown in figure. The flux of electrostatic field through the shaded area is : Includes diagramPhysics · Electrostatics · MCQ
- Q58.Thermodynamic process is shown below on a P-V diagram for one mole of an ideal gas. If V2 = 2V1 then the ratio of temperature T2/T1 is : Includes diagramPhysics · Heat and Thermodynamics · MCQ
- Q59.The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is :Physics · Atoms and Nuclei · MCQ
- Q60.Y = A sin( t + 0) is the time-displacement equation of a SHM. At t = 0 the displacement of the particle is and it is moving along negative x-direction. Then the initial phase angle 0 will be:Physics · Simple Harmonic Motion · MCQ
- Q61.Two identical springs of spring constant '2k' are attached to a block of mass m and to fixed support (see figure). When the mass is displaced from equilibrium position on either side, it executes simple harmonic motion. The time period of… Includes diagramPhysics · Simple Harmonic Motion · MCQ
- Q62.The point A moves with a uniform speed along the circumference of a circle of radius 0.36 m and covers 30 in 0.1 s. The perpendicular projection 'P' from 'A' on the diameter MN represents the simple harmonic motion of 'P'. The… Includes diagramPhysics · Simple Harmonic Motion · MCQ
- Q63.If e is the electronic charge, c is the speed of light in free space and h is Planck's constant, the quantity has dimensions of :Physics · Units and Measurements · MCQ
- Q64.For extrinsic semiconductors; when doping level is increased;Physics · Electronic Devices · MCQ
- Q65.The truth table for the following logic circuit is : Includes diagramPhysics · Electronic Devices · MCQ
- Q66.A stone is dropped from the top of a building. When it crosses a point 5 m below the top, another stone starts to fall from a point 25 m below the top. Both stones reach the bottom of building simultaneously. The height of the building is :Physics · Motion in A Straight Line · MCQ
- Q67.The stopping potential for electrons emitted from a photosensitive surface illuminated by light of wavelength 491 nm is 0.710 V. When the incident wavelength is changed to a new value, the stopping potential is 1.43 V. The new wavelength…Physics · Dual Nature of Radiation · MCQ
- Q68.If , the angle between and is (0 < < 360 ). The value of ''…Physics · Vector Algebra · Numerical
- Q69.The percentage increase in the speed of transverse waves produced in a stretched string if the tension is increased by 4%, will be %.Physics · Waves · Numerical
- Q70.The initial velocity vi required to project a body vertically upward from the surface of the earth to reach a height of 10R, where R is the radius of the earth, may be described in terms of escape velocity ve such that …Physics · Gravitation · Numerical
- Q71.The peak electric field produced by the radiation coming from the 8W bulb at a distance of 10 m is . The efficiency of the bulb is 10% and it is a point source. The value of x…Physics · Electromagnetic Waves · Numerical
- Q72.Two identical conducting spheres with negligible volume have 2.1 nC and 0.1 nC charges, respectively. They are brought into contact and then separated by a distance of 0.5 m. The electrostatic force acting between the spheres is …Physics · Electrostatics · Numerical
- Q73.The wavelength of an X-ray beam is 10 . The mass of a fictitious particle having the same energy as that of the X-ray photons is kg. The value of x is . (h = Planck's constant)Physics · Electromagnetic Waves · Numerical
- Q74.Two small spheres each of mass 10 mg are suspended from a point by threads 0.5 m long. They are equally charged and repel each other to a distance of 0.20 m. The charge on each of the sphere is C. The…Physics · Electrostatics · Numerical
- Q75.Two particles having masses 4 g and 16 g respectively are moving with equal kinetic energies. The ratio of the magnitudes of their linear momentum is n : 2. The value of n will be .Physics · Center of Mass · Numerical
- Q76.A current of 6A enters one corner P of an equilateral triangle PQR having 3 wires of resistance 2 each and leaves by the corner R. The currents i1 in ampere is . Includes diagramPhysics · Current Electricity · Numerical