2021 · 26 Feb · Shift 1
72 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 · 26 Feb · Shift 1
72 questions · JEE Main
Haloalkanes and HaloarenesChemistry · 2 questionsPractical Organic ChemistryChemistry · 1 questionsP Block ElementsChemistry · 1 questionsPeriodic Table and PeriodicityChemistry · 1 questionsBasics of Organic ChemistryChemistry · 1 questionsChemical Bonding and Molecular StructureChemistry · 1 questionsD and F Block ElementsChemistry · 1 questionsElectrochemistryChemistry · 2 questionsAlcohols Phenols and EthersChemistry · 3 questionsCompounds Containing NitrogenChemistry · 1 questionsBiomoleculesChemistry · 1 questionsStructure of AtomChemistry · 1 questionsThermodynamicsChemistry · 2 questionsRedox ReactionsChemistry · 1 questionsCoordination CompoundsChemistry · 1 questionsSolutionsChemistry · 1 questionsChemical EquilibriumChemistry · 1 questionsBinomial TheoremMathematics · 1 questionsLimits Continuity and DifferentiabilityMathematics · 1 questionsMatrices and DeterminantsMathematics · 2 questionsDefinite IntegrationMathematics · 3 questionsPermutations and CombinationsMathematics · 1 questionsSets and RelationsMathematics · 1 questionsStraight Lines and Pair of Straight LinesMathematics · 1 questionsCircleMathematics · 1 questionsInverse Trigonometric FunctionsMathematics · 1 questionsApplication of DerivativesMathematics · 1 questionsDifferential EquationsMathematics · 3 questionsSequences and SeriesMathematics · 1 questionsLogarithmMathematics · 1 questionsQuadratic Equation and InequalitiesMathematics · 1 questionsArea Under the CurvesMathematics · 1 questionsTrigonometric Ratio and IdentitesMathematics · 1 questionsCapacitorPhysics · 1 questionsAlternating CurrentPhysics · 2 questionsRotational MotionPhysics · 1 questionsProperties of MatterPhysics · 2 questionsElectronic DevicesPhysics · 2 questionsGeometrical OpticsPhysics · 1 questionsWave OpticsPhysics · 1 questionsSimple Harmonic MotionPhysics · 2 questionsUnits and MeasurementsPhysics · 1 questionsCircular MotionPhysics · 1 questionsHeat and ThermodynamicsPhysics · 2 questionsElectrostaticsPhysics · 1 questionsGravitationPhysics · 2 questionsDual Nature of RadiationPhysics · 1 questionsCenter of MassPhysics · 1 questionsAtoms and NucleiPhysics · 1 questionsCurrent ElectricityPhysics · 2 questionsLaws of MotionPhysics · 3 questionsWavesPhysics · 1 questionsElectromagnetic WavesPhysics · 1 questions
- Q1.For the given reaction What is 'A'? Includes diagramChemistry · Haloalkanes and Haloarenes · MCQ
- Q2.Which of the following is 'a' FALSE statement ?Chemistry · Practical Organic Chemistry · MCQ
- Q3.Find A, B and C in the following reactions :Chemistry · P Block Elements · MCQ
- Q4.Match List - I with List - II. Choose the most appropriate answer from the options given below : Includes tableChemistry · Periodic Table and Periodicity · MCQ
- Q5.Given below are two statements : Statement I : A mixture of chloroform and aniline can be separated by simple distillation. Statement II : When separating aniline from a mixture of aniline and water by steam distillation aniline boils…Chemistry · Basics of Organic Chemistry · MCQ
- Q6.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Dipole-dipole interactions are the only non-covalent interactions, resulting in hydrogen bond formation. Reason R :…Chemistry · Chemical Bonding and Molecular Structure · MCQ
- Q7.Which one of the following lanthanoids does not form ? [M is lanthanoid metal]Chemistry · D and F Block Elements · MCQ
- Q8.For the given reaction : What is 'A'? Includes diagramChemistry · Haloalkanes and Haloarenes · MCQ
- Q9.Compound A used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound A is :Chemistry · Electrochemistry · MCQ
- Q10.Identify the major products A and B respectively in the following reactions of phenol : Includes diagramChemistry · Alcohols Phenols and Ethers · MCQ
- Q11.An amine on reaction with benzensulphonyl chloride produces a compound insoluble in alkaline solution. This amine can be prepared by ammonolysis of ethyl chloride. The correct structure of amine is :Chemistry · Compounds Containing Nitrogen · MCQ
- Q12.Given below are two statements : Statement I : o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding. Statement II : o-Nitrophenol has high melting due to hydrogen bonding. In the light of the above statements, choose the…Chemistry · Alcohols Phenols and Ethers · MCQ
- Q13.B reacts with Hydroxyl amine but does not give Tollen's test. Identify A and B. Includes diagramChemistry · Alcohols Phenols and Ethers · MCQ
- Q14.Which of the following vitamin is helpful in delaying the blood clotting?Chemistry · Biomolecules · MCQ
- Q15.The orbital having two radial as well as two angular nodes is :Chemistry · Structure of Atom · MCQ
- Q16.For a chemical reaction A + B ⇌ C + D ( = 80 kJ mol 1) the entropy change depends on the temperature T (in K) as = 2T (J K 1mol 1). Minimum temperature…Chemistry · Thermodynamics · Numerical
- Q17.An exothermic reaction X Y has an activation energy 30 kJ mol 1. If energy change E during the reaction is 20 kJ, then the activation energy for the reverse reaction in kJ is . (Integer…Chemistry · Thermodynamics · Numerical
- Q18.Dichromate ion is treated with base, the oxidation number of Cr in the product formed is .Chemistry · Redox Reactions · Numerical
- Q19.Number of bridging ligands in is .Chemistry · Coordination Compounds · Numerical
- Q20.Consider the following reaction . The quantity of electricity required in Faraday to reduce five moles of is . (Integer answer)Chemistry · Electrochemistry · Numerical
- Q21.224 mL of (g) at 298 K and 1 atm is passed through 100 mL of 0.1 M solution. The non-volatile solute produced is dissolved in 36g of water. The lowering of vapour pressure of solution (assuming the solution in dilute) (P …Chemistry · Solutions · Numerical
- Q22.A homogeneous ideal gaseous reaction is carried out in a 25 litre flask at 27 C. The initial amount of was 1 mole and the equilibrium pressure was 1.9 atm. The value…Chemistry · Chemical Equilibrium · Numerical
- Q23.The maximum value of the term independent of 't' in the expansion of where x (0, 1) is :Mathematics · Binomial Theorem · MCQ
- Q24.The value of is :Mathematics · Limits Continuity and Differentiability · MCQ
- Q25.Let A be a symmetric matrix of order 2 with integer entries. If the sum of the diagonal elements of A2 is 1, then the possible number of such matrices is :Mathematics · Matrices and Determinants · MCQ
- Q26.The value of is :Mathematics · Definite Integration · MCQ
- Q27.The number of seven digit integers with sum of the digits equal to 10 and formed by using the digits 1, 2 and 3 only is :Mathematics · Permutations and Combinations · MCQ
- Q28.Let R = {(P, Q) | P and Q are at the same distance from the origin} be a relation, then the equivalence class of (1, 1) is the set :Mathematics · Sets and Relations · MCQ
- Q29.The value of , where [ x ] is the greatest integer x, is :Mathematics · Definite Integration · MCQ
- Q30.The intersection of three lines x y = 0, x + 2y = 3 and 2x + y = 6 is a :Mathematics · Straight Lines and Pair of Straight Lines · MCQ
- Q31.In the circle given below, let OA = 1 unit, OB = 13 unit and PQ OB. Then, the area of the triangle PQB (in square units) is : Includes diagramMathematics · Circle · MCQ
- Q32.The value of is :Mathematics · Matrices and Determinants · MCQ
- Q33.If ; , then the value of is :Mathematics · Inverse Trigonometric Functions · MCQ
- Q34.The maximum slope of the curve occurs at the point :Mathematics · Application of Derivatives · MCQ
- Q35.The rate of growth of bacteria in a culture is proportional to the number of bacteria present and the bacteria count is 1000 at initial time t = 0. The number of bacteria is increased by 20% in 2 hours. If the population of bacteria is…Mathematics · Differential Equations · MCQ
- Q36.In an increasing geometric series, the sum of the second and the sixth term is and the product of the third and fifth term is 25. Then, the sum of 4th, 6th and 8th terms is equal to :Mathematics · Sequences and Series · MCQ
- Q37.The value of the integral is .Mathematics · Definite Integration · Numerical
- Q38.The number of solutions of the equation log4(x 1) = log2(x 3) is .Mathematics · Logarithm · Numerical
- Q39.The sum of 162th power of the roots of the equation x3 2x2 + 2x 1 = 0 is .Mathematics · Quadratic Equation and Inequalities · Numerical
- Q40.The area bounded by the lines y = || x 1 | 2 | is .Mathematics · Area Under the Curves · Numerical
- Q41.The difference between degree and order of a differential equation that represents the family of curves given by , a > 0 is .Mathematics · Differential Equations · Numerical
- Q42.If y = y(x) is the solution of the equation , y(0) = 0; then …Mathematics · Differential Equations · Numerical
- Q43.The number of integral values of 'k' for which the equation has a solution, k R is .Mathematics · Trigonometric Ratio and Identites · Numerical
- Q44.Consider the combination of 2 capacitors C1 and C2 with C2 > C1, when connected in parallel, the equivalent capacitance is times the equivalent capacitance of the same connected in series. Calculate the ratio of…Physics · Capacitor · MCQ
- Q45.An alternating current is given by the equation i = i1 sin t + i2 cos t. The rms current will be :Physics · Alternating Current · MCQ
- Q46.Four identical solid spheres each of mass 'm' and radius 'a' are placed with their centres on the four corners of a square of side 'b'. The moment of inertia of the system about one side of square where the axis of rotation is parallel to…Physics · Rotational Motion · MCQ
- Q47.A large number of water drops, each of radius r, combine to have a drop of radius R. If the surface tension is T and mechanical equivalent of heat is J, the rise in heat energy per unit volume will be :Physics · Properties of Matter · MCQ
- Q48.LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9 eV. Calculate the wavelength of light emitted and its colour. [h = 6.63 10 34 Js and c = 3 108 ms 1]Physics · Electronic Devices · MCQ
- Q49.A short straight object of height 100 cm lies before the central axis of a spherical mirror whose focal length has absolute value | f | = 40 cm. The image of object produced by the mirror is of height 25 cm and has the same orientation of…Physics · Geometrical Optics · MCQ
- Q50.In a Young's double slit experiment two slits are separated by 2 mm and the screen is placed one meter away. When a light of wavelength 500 nm is used, the fringe separation will be :Physics · Wave Optics · MCQ
- Q51.Assume that a tunnel is dug along a chord of the earth, at a perpendicular distance (R/2) from the earth's centre, where 'R' is the radius of the Earth. The wall of the tunnel is frictionless. If a particle is released in this tunnel, it…Physics · Simple Harmonic Motion · MCQ
- Q52.In a typical combustion engine the workdone by a gas molecule is given by , where x is the displacement, k is the Boltzmann constant and T is the temperature. If and …Physics · Units and Measurements · MCQ
- Q53.If two similar springs each of spring constant K1 are joined in series, the new spring constant and time period would be changed by a factor :Physics · Simple Harmonic Motion · MCQ
- Q54.A particle is moving with uniform speed along the circumference of a circle of radius R under the action of a central fictitious force F which is inversely proportional to R3. Its time period of revolution will be given by :Physics · Circular Motion · MCQ
- Q55.The temperature at the junction of two insulating sheets, having thermal resistances R1 and R2 as well as top and bottom temperatures 1 and 2 (as shown in figure) is given by : Includes diagramPhysics · Heat and Thermodynamics · MCQ
- Q56.Find the electric field at point P (as shown in figure) on the perpendicular bisector of a uniformly charged thin wire of length L carrying a charge Q. The distance of the point P from the centre of the rod is a = . Includes diagramPhysics · Electrostatics · MCQ
- Q57.A planet revolving in elliptical orbit has : A. a constant velocity of revolution. B. has the least velocity when it is nearest to the sun. C. its areal velocity is directly proportional to its velocity. D. areal velocity is inversely…Physics · Gravitation · MCQ
- Q58.Given below are two statements : one is labeled as Assertion A and the other is labelled as Reason R. Assertion A : An electron microscope can achieve better resolving power than an optical microscope. Reason R : The de Broglie's…Physics · Dual Nature of Radiation · MCQ
- Q59.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Body 'P' having mass M moving with speed 'u' has head-on collision elastically with another body 'Q' having mass 'm'…Physics · Center of Mass · MCQ
- Q60.The normal density of a material is and its bulk modulus of elasticity is K. The magnitude of increase in density of material, when a pressure P is applied uniformly on all sides, will be :Physics · Properties of Matter · MCQ
- Q61.If 1 and 2 are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of 1 : 2 is :Physics · Atoms and Nuclei · MCQ
- Q62.Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If R is the distance between the centres of a ring (of… Includes diagramPhysics · Gravitation · MCQ
- Q63.Five equal resistances are connected in a network as shown in figure. The net resistance between the points A and B is : Includes diagramPhysics · Current Electricity · MCQ
- Q64.A person standing on a spring balance inside a stationary lift measures 60 kg. The weight of that person if the lift descends with uniform downward acceleration of 1.8 m/s2 will be N. [g = 10 m/s2]Physics · Laws of Motion · Numerical
- Q65.The circuit contains two diodes each with a forward resistance of 50 and with infinite reverse resistance. If the battery voltage is 6V, the current through the 120 resistance is mA. Includes diagramPhysics · Electronic Devices · Numerical
- Q66.In a series LCR resonant circuit, the quality factor is measured as 100. If the inductance is increased by two fold and resistance is decreased by two fold, then the quality factor after this change will be .Physics · Alternating Current · Numerical
- Q67.The mass per unit length of a uniform wire is 0.135 g/cm. A transverse wave of the form y = 0.21 sin (x + 30t) is produced in it, where x is in meter and t is in second. Then, the expected value of tension in the wire is x 10 …Physics · Waves · Numerical
- Q68.In an electrical circuit, a battery is connected to pass 20C of charge through it in a certain given time. The potential difference between two plates of the battery is maintained at 15V. The workdone by the battery is …Physics · Current Electricity · Numerical
- Q69.A boy pushes a box of mass 2 kg with a force on a frictionless surface. If the box was initially at rest, then m is displacement along the…Physics · Laws of Motion · Numerical
- Q70.A radiation is emitted by 1000W bulb and it generates an electric field and magnetic field at P, placed at a distance of 2m. The efficiency of the bulb is 1.25%. The value of peak electric field at P is x 10 1 V/m. Value of x…Physics · Electromagnetic Waves · Numerical
- Q71.A container is divided into two chambers by a partition. The volume of first chamber is 4.5 litre and second chamber is 5.5 litre. The first chamber contain 3.0 moles of gas at pressure 2.0 atm and second chamber contain 4.0 moles of gas…Physics · Heat and Thermodynamics · Numerical
- Q72.As shown in the figure, a block of mass kg is kept on a horizontal rough surface of coefficient of friction . The critical force to be applied on the vertical surface as shown at an angle 60 with… Includes diagramPhysics · Laws of Motion · Numerical