2020 · 6 Sep · Shift 1
61 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.
2020 · 6 Sep · Shift 1
61 questions · JEE Main
Chemical Bonding and Molecular StructureChemistry · 1 questionsSolutionsChemistry · 1 questionsElectrochemistryChemistry · 1 questionsPractical Organic ChemistryChemistry · 1 questionsD and F Block ElementsChemistry · 2 questionsAldehydes Ketones and Carboxylic AcidsChemistry · 2 questionsChemical EquilibriumChemistry · 2 questionsChemical Kinetics and Nuclear ChemistryChemistry · 1 questionsP Block ElementsChemistry · 1 questionsHydrocarbonsChemistry · 2 questionsBasics of Organic ChemistryChemistry · 1 questionsCoordination CompoundsChemistry · 1 questionsIonic EquilibriumChemistry · 1 questionsSome Basic Concepts of ChemistryChemistry · 1 questionsCompounds Containing NitrogenChemistry · 1 questionsArea Under the CurvesMathematics · 1 questionsDifferential EquationsMathematics · 1 questionsComplex NumbersMathematics · 1 questionsSequences and SeriesMathematics · 1 questionsDefinite IntegrationMathematics · 2 questionsSets and RelationsMathematics · 1 questionsLimits Continuity and DifferentiabilityMathematics · 1 questionsVector AlgebraMathematics · 1 questionsApplication of DerivativesMathematics · 1 questionsQuadratic Equation and InequalitiesMathematics · 1 questionsStatisticsMathematics · 1 questionsBinomial TheoremMathematics · 1 questionsFunctionsMathematics · 1 questionsProbabilityMathematics · 1 questionsStraight Lines and Pair of Straight LinesMathematics · 1 questionsMatrices and DeterminantsMathematics · 2 questionsPermutations and CombinationsMathematics · 1 questionsElectronic DevicesPhysics · 1 questionsMagneticsPhysics · 2 questionsCenter of MassPhysics · 1 questionsHeat and ThermodynamicsPhysics · 2 questionsProperties of MatterPhysics · 1 questionsGeometrical OpticsPhysics · 1 questionsLaws of MotionPhysics · 1 questionsWave OpticsPhysics · 1 questionsCircular MotionPhysics · 1 questionsElectrostaticsPhysics · 1 questionsRotational MotionPhysics · 2 questionsAtoms and NucleiPhysics · 1 questionsWork Power and EnergyPhysics · 1 questionsGravitationPhysics · 1 questionsCapacitorPhysics · 1 questionsUnits and MeasurementsPhysics · 2 questionsDual Nature of RadiationPhysics · 1 questionsElectromagnetic InductionPhysics · 1 questionsElectromagnetic WavesPhysics · 1 questions
- Q1.The number of Cl = O bonds in perchloric acid is, "".Chemistry · Chemical Bonding and Molecular Structure · Numerical
- Q2.The elevation of boiling point of 0.10 m aqueous solution is two times that of 0.05 m aqueous solution. The value of x is . [Assume 100% ionisation of the complex and , coordination…Chemistry · Solutions · Numerical
- Q3.Potassium chlorate is prepared by the electrolysis of in basic solution If only 60% of the current is utilized in the reaction, the time (rounded to the nearest hour) required to produce…Chemistry · Electrochemistry · Numerical
- Q4.In an estimation of bromine by Carius method, 1.6 g of an organic compound gave 1.88 g of AgBr. The mass percentage of bromine in the compound is . (Atomic mass, Ag = 108, Br = 80 g mol–1)Chemistry · Practical Organic Chemistry · Numerical
- Q5.The set that contains atomic numbers of only transition elements, is :Chemistry · D and F Block Elements · MCQ
- Q6.Consider the following reactions 'A' is : Includes diagramChemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q7.The variation of equilibrium constant with temperature is given below : The values of Ho, Go at T1 and Go at T2 (in kJ mol–1) respectively, are close to : [Use R = 8.314 J K–1 mol–1] Includes tableChemistry · Chemical Equilibrium · MCQ
- Q8.Consider the following reactions A ; B ; C ; D , The order of the above reactions are a, b, c, and d, respectively. The following graph is obtained when log[rate] vs. log[conc.] are plotted… Includes diagramChemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
- Q9.The correct statement with respect to dinitrogen is :Chemistry · P Block Elements · MCQ
- Q10.The major product obtained from the following reaction is : Includes diagramChemistry · Hydrocarbons · MCQ
- Q11.Which of the following compounds shows geometrical isomerism?Chemistry · Basics of Organic Chemistry · MCQ
- Q12.The lanthanoid that does NOT show +4 oxidation state is :Chemistry · D and F Block Elements · MCQ
- Q13.The major products of the following reaction are : Includes diagramChemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q14.The major product of the following reaction is : Includes diagramChemistry · Hydrocarbons · MCQ
- Q15.The species that has a spin-only magnetic moment of 5.9 BM, is : (Td = tetrahedral)Chemistry · Coordination Compounds · MCQ
- Q16.Arrange the following solutions in the decreasing order of pOH : (A) 0.01 M (B) 0.01 M (C) 0.01 M (D) 0.01 MChemistry · Ionic Equilibrium · MCQ
- Q17.For the reaction (s) + (g) ⇌ 2Fe(s) + (g)Chemistry · Chemical Equilibrium · MCQ
- Q18.A solution of two components containing moles of the 1st component and moles of the 2nd component is prepared. and are the molecular weights of component 1 and 2 respectively. If d is the density of the solution in…Chemistry · Some Basic Concepts of Chemistry · MCQ
- Q19.The increasing order of pKb values of the following compounds is : Includes diagramChemistry · Compounds Containing Nitrogen · MCQ
- Q20.The area (in sq. units) of the region A = {(x, y) : |x| + |y| 1, 2y2 |x|}Mathematics · Area Under the Curves · MCQ
- Q21.The general solution of the differential equation + xy = 0 is : (where C is a constant of integration)Mathematics · Differential Equations · MCQ
- Q22.The region represented by {z = x + iy C : |z| – Re(z) 1} is also given by the inequality : {z = x + iy C : |z| – Re(z) 1}Mathematics · Complex Numbers · MCQ
- Q23.Let a , b, c , d and p be any non zero distinct real numbers such that (a2 + b2 + c2)p2 – 2(ab + bc + cd)p + (b2 + c2 + d2) = 0. Then :Mathematics · Sequences and Series · MCQ
- Q24.Mathematics · Definite Integration · MCQ
- Q25.Set A has m elements and set B has n elements. If the total number of subsets of A is 112 more than the total number of subsets of B, then the value of m.n is .Mathematics · Sets and Relations · Numerical
- Q26.Let f : R R be defined as …Mathematics · Limits Continuity and Differentiability · Numerical
- Q27.If and are unit vectors, then the greatest value of is …Mathematics · Vector Algebra · Numerical
- Q28.If I1 = and I2 = such that I2 = I1 then equals to :Mathematics · Definite Integration · MCQ
- Q29.The position of a moving car at time t is given by f(t) = at2 + bt + c, t > 0, where a, b and c are real numbers greater than 1. Then the average speed of the car over the time interval [t1 , t2 ] is attained at the point :Mathematics · Application of Derivatives · MCQ
- Q30.If and be two roots of the equation x2 – 64x + 256 = 0. Then the value of is :Mathematics · Quadratic Equation and Inequalities · MCQ
- Q31.If and (n, a > 1) then the standard deviation of n observations x1 , x2 , ..., xn is :Mathematics · Statistics · MCQ
- Q32.If {p} denotes the fractional part of the number p, then , is equal to :Mathematics · Binomial Theorem · MCQ
- Q33.If f(x + y) = f(x)f(y) and , x, y N, where N is the set of all natural number, then the value of is :Mathematics · Functions · MCQ
- Q34.Out of 11 consecutive natural numbers if three numbers are selected at random (without repetition), then the probability that they are in A.P. with positive common difference, is :Mathematics · Probability · MCQ
- Q35.A ray of light coming from the point (2, ) is incident at an angle 30o on the line x = 1 at the point A. The ray gets reflected on the line x = 1 and meets x-axis at the point B. Then, the line AB passes through the point :Mathematics · Straight Lines and Pair of Straight Lines · MCQ
- Q36.The values of and for which the system of linear equations x + y + z = 2 x + 2y + 3z = 5 x + 3y + z = has infinitely many solutions are, respectively:Mathematics · Matrices and Determinants · MCQ
- Q37.Let m and M be respectively the minimum and maximum values of …Mathematics · Matrices and Determinants · MCQ
- Q38.Two families with three members each and one family with four members are to be seated in a row. In how many ways can they be seated so that the same family members are not separated?Mathematics · Permutations and Combinations · MCQ
- Q39.Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B. Includes diagramPhysics · Electronic Devices · MCQ
- Q40.A particle of charge q and mass m is moving with a velocity (v 0) towards a large screen placed in the Y - Z plane at a distance d. If there is a magnetic field , the maximum value…Physics · Magnetics · MCQ
- Q41.Two bodies of the same mass are moving with the same speed, but in different directions in a plane. They have a completely inelastic collision and move together thereafter with a final speed which is half of their initial speed. The angle…Physics · Center of Mass · Numerical
- Q42.Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom.The gas is maintained at a temperature of T. The total internal energy, U of a mole of this gas, and the value of …Physics · Heat and Thermodynamics · MCQ
- Q43.An object of mass m is suspended at the end of a massless wire of length L and area of crosssection A. Young modulus of the material of the wire is Y. If the mass is pulled down slightly its frequency of oscillation along the vertical…Physics · Properties of Matter · MCQ
- Q44.A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is placed at a distance of 2 m behind the lens. The position and nature of the final image formed by the system is :Physics · Geometrical Optics · MCQ
- Q45.An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts slipping after it is at height h from the bottom. If the coefficient of friction between the ground and the insect is 0.75, then h is : (g…Physics · Laws of Motion · MCQ
- Q46.In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5 m and the phase of P is ahead of that of Q by 90o. A, B and C are three distinct points of… Includes diagramPhysics · Wave Optics · MCQ
- Q47.A clock has a continuously moving second's hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms–2) is of the order of :Physics · Circular Motion · MCQ
- Q48.Charges Q1 and Q2 are at points A and B of a right angle triangle OAB (see figure). The resultant electric field at point O is perpendicular to the hypotenuse, then is proportional to : Includes diagramPhysics · Electrostatics · MCQ
- Q49.An electron is moving along +x direction with a velocity of 6 106 ms–1. It enters a region of uniform electric field of 300 V/cm pointing along +y direction. The magnitude and direction of the magnetic field set up in this region…Physics · Magnetics · MCQ
- Q50.Shown in the figure is a hollow icecream cone (it is open at the top). If its mass is M, radius of its top, R and height, H, then its moment of inertia about its axis is : Includes diagramPhysics · Rotational Motion · MCQ
- Q51.You are given that Mass of = 7.0160u, Mass of = 4.0026u and Mass of = 1.0079u. When 20 g of is converted into by proton capture, the energy liberated, (in kWh), is : [Mass of nucleon = 1…Physics · Atoms and Nuclei · MCQ
- Q52.If the potential energy between two molecules is given by U = , then at equilibrium, separation between molecules, and the potential energy are :Physics · Work Power and Energy · MCQ
- Q53.A satellite is in an elliptical orbit around a planet P. It is observed that the velocity of the satellite when it is farthest from the planet is 6 times less than that when it is closest to the planet. The ratio of distances between the…Physics · Gravitation · MCQ
- Q54.For the given input voltage waveform Vin(t), the output voltage waveform V0(t), across the capacitor is correctly depicted by : Includes diagramPhysics · Capacitor · MCQ
- Q55.Four point masses, each of mass m, are fixed at the corners of a square of side . The square is rotating with angular frequency , about an axis passing through one of the corners of the square and parallel to its diagonal, as… Includes diagramPhysics · Rotational Motion · MCQ
- Q56.A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the pitch scale marking, prior to use. Upon one complete rotation of the circular scale, a displacement of 0.5mm is noticed on the pitch scale.…Physics · Units and Measurements · MCQ
- Q57.An electron, a doubly ionized helium ion (He++) and a proton are having the same kinetic energy. The relation between their respective de-Broglie wavelengths e, He++ and p is :Physics · Dual Nature of Radiation · MCQ
- Q58.A part of a complete circuit is shown in the figure. At some instant, the value of current I is 1A and it is decreasing at a rate of 102 A s–1. The value of the potential difference VP – VQ , (in volts) at that instant, is … Includes diagramPhysics · Electromagnetic Induction · Numerical
- Q59.Initially a gas of diatomic molecules is contained in a cylinder of volume V1 at a pressure P1 and temperature 250 K. Assuming that 25% of the molecules get dissociated causing a change in number of moles. The pressure of the resulting gas…Physics · Heat and Thermodynamics · Numerical
- Q60.The density of a solid metal sphere is determined by measuring its mass and its diameter. The maximum error in the density of the sphere is %. If the relative errors in measuring the mass and the…Physics · Units and Measurements · Numerical
- Q61.Suppose that intensity of a laser is W/m2. The rms electric field, in units of V/m associated with this source is close to the nearest integer is . 0 = 8.86 × 10–12 C2 Nm–2; c = 3 × 108…Physics · Electromagnetic Waves · Numerical