JEE Main 2020 (Online) 2nd September Morning Slot
Paper was held on Wed, Sep 2, 2020 3:30 AM
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Chemistry

On heating compound (A) gives a gas (B) which is a constituent of air. This gas when treated with H2 in the presence of
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In Carius method of estimation of halogen, 0.172 g of an organic compound showed presence of 0.08 g of bromine. Which of
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If AB4 molecule is a polar molecule, a possible geometry of AB4 is
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The major product in the following reaction is :
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The figure that is not a direct manifestation of the quantum nature of atoms is :
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For the following Assertion and Reason, the correct option is Assertion (A): When Cu (II) and sulphide ions are mixed, t
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An open beaker of water in equilibrium with water vapour is in a sealed container. When a few grams of glucose are added
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Consider the following rections: 'x', 'y' and 'z' in these reactions are respectively.
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Which one of the following graphs is not correct for ideal gas? d = Density, P = Pressure, T = Temperature
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For octahedral Mn(II) and tetrahedral Ni(II) complexes, consider the following statements: (I) both the complexes can be
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Consider that a d6 metal ion (M2+) forms a complex with aqua ligands, and the spin only magnetic moment of the complex i
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Which of the following compunds will show retention in configuration on nucleophilic substitution by OH– ion?
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The IUPAC name for the following compound is
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The statement that is not true about ozone is :
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While titrating dilute HCl solution with aqueous NaOH, which of the following will not be required?
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Which of the following is used for the preparation of colloids?
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In general the property (magnitudes only) that show an opposite trend in comparison to other properties across a period
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The major aromatic product C in the following reaction sequence will be :
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The metal mainly used in devising photoelectric cells is :
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The increasing order of the following compounds towards HCN addition is :
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The mass of gas adsorbed, x, per unit mass of adsorbate, m, was measured at various pressures, p. A graph between $$\log
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The Gibbs change (in J) for the given reaction at [Cu2+] = [Sn2+] = 1 M and 298K is : Cu(s) + Sn2+(aq.) $$ \to $$ Cu2+(
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The number of chiral carbons present in the molecule given below is _____ .
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The internal energy change (in J) When 90 g of water undergoes complete evaporation at 100oC is ____________. (Given : $
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The oxidation states of iron atoms in compounds (A), (B) and (C), respectively, are x, y and z. The sum of x, y and z is
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Mathematics

Let $$\alpha $$ > 0, $$\beta $$ > 0 be such that $$\alpha $$3 + $$\beta $$2 = 4. If the maximum value of the term
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If |x| < 1, |y| < 1 and x $$ \ne $$ y, then the sum to infinity of the following series (x + y) + (x2+xy+y2) + (x3
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Box I contains 30 cards numbered 1 to 30 and Box II contains 20 cards numbered 31 to 50. A box is selected at random and
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Area (in sq. units) of the region outside $${{\left| x \right|} \over 2} + {{\left| y \right|} \over 3} = 1$$ and inside
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If a function f(x) defined by $$f\left( x \right) = \left\{ {\matrix{ {a{e^x} + b{e^{ - x}},} & { - 1 \le x <
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Let S be the set of all $$\lambda $$ $$ \in $$ R for which the system of linear equations 2x – y + 2z = 2 x – 2y + $$\la
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Let A be a 2 $$ \times $$ 2 real matrix with entries from {0, 1} and |A| $$ \ne $$ 0. Consider the following two stateme
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The contrapositive of the statement "If I reach the station in time, then I will catch the train" is :
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Let y = y(x) be the solution of the differential equation, $${{2 + \sin x} \over {y + 1}}.{{dy} \over {dx}} = - \cos x$
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Let X = {x $$ \in $$ N : 1 $$ \le $$ x $$ \le $$ 17} and Y = {ax + b: x $$ \in $$ X and a, b $$ \in $$ R, a > 0}. If
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The plane passing through the points (1, 2, 1), (2, 1, 2) and parallel to the line, 2x = 3y, z = 1 also passes through t
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Let P(h, k) be a point on the curve y = x2 + 7x + 2, nearest to the line, y = 3x – 3. Then the equation of the normal t
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If the tangent to the curve y = x + sin y at a point (a, b) is parallel to the line joining $$\left( {0,{3 \over 2}} \ri
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If R = {(x, y) : x, y $$ \in $$ Z, x2 + 3y2 $$ \le $$ 8} is a relation on the set of integers Z, then the domain of R–1
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Let $$\alpha $$ and $$\beta $$ be the roots of the equation 5x2 + 6x – 2 = 0. If Sn = $$\alpha $$n + $$\beta $$n, n = 1
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The sum of the first three terms of a G.P. is S and their product is 27. Then all such S lie in :
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A line parallel to the straight line 2x – y = 0 is tangent to the hyperbola $${{{x^2}} \over 4} - {{{y^2}} \over 2} = 1
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The domain of the function f(x) = $${\sin ^{ - 1}}\left( {{{\left| x \right| + 5} \over {{x^2} + 1}}} \right)$$ is (– $$
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The value of $${\left( {{{1 + \sin {{2\pi } \over 9} + i\cos {{2\pi } \over 9}} \over {1 + \sin {{2\pi } \over 9} - i\co
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If p(x) be a polynomial of degree three that has a local maximum value 8 at x = 1 and a local minimum value 4 at x = 2;
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The integral $$\int\limits_0^2 {\left| {\left| {x - 1} \right| - x} \right|dx} $$ is equal to______.
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Let $$\overrightarrow a $$, $$\overrightarrow b $$ and $$\overrightarrow c $$ be three unit vectors such that $${\left|
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If $$\mathop {\lim }\limits_{x \to 1} {{x + {x^2} + {x^3} + ... + {x^n} - n} \over {x - 1}}$$ = 820, (n $$ \in $$ N) the
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The number of integral values of k for which the line, 3x + 4y = k intersects the circle, x2 + y2 – 2x – 4y + 4 = 0 at
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If the letters of the word 'MOTHER' be permuted and all the words so formed (with or without meaning) be listed as in a
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Physics

Interference fringes are observed on a screen by illuminating two thin slits 1 mm apart with a light source ($$\lambda $
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A cylindrical vessel containing a liquid is rotated about its axis so that the liquid rises at its sides as shown in the
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A charged particle (mass m and charge q) moves along X-axis with velocity V0. When it passes through the origin it enter
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An amplitude modulated wave is represented by the expression vm = 5(1 + 0.6 cos 6280t) sin(211 × 104 t) volts The minimu
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A plane electromagnetic wave, has frequency of 2.0 $$ \times $$ 1010 Hz and its energy density is 1.02 $$ \times $$ 10–8
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A uniform cylinder of mass M and radius R is to be pulled over a step of height a (a < R) by applying a force F at it
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Two identical strings X and Z made of same material have tension TX and TZ in them. If their fundamental frequencies are
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Shown in the figure is rigid and uniform one meter long rod AB held in horizontal position by two strings tied to its e
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A bead of mass m stays at point P(a, b) on a wire bent in the shape of a parabola y = 4Cx2 and rotating with angular spe
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Magnetic materials used for making permanent magnets (P) and magnets in a transformer (T) have different properties of t
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The mass density of a spherical galaxy varies as $${K \over r}$$ over a large distance ‘r’ from its centre. In that regi
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If speed V, area A and force F are chosen as fundamental units, then the dimension of Young’s modulus will be
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The least count of the main scale of a vernier callipers is 1 mm. Its vernier scale is divided into 10 divisions and coi
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Train A and train B are running on parallel tracks in the opposite directions with speeds of 36 km/hour and 72 km/hour,
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A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature T. Assuming the gases to be ideal and th
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A particle of mass m with an initial velocity $$u\widehat i$$ collides perfectly elastically with a mass 3 m at rest. It
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Consider four conducting materials copper, tungsten, mercury and aluminium with resistivity $$\rho $$C, $$\rho $$T, $$\r
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A spherical mirror is obtained as shown in the figure from a hollow glass sphere. If an object is positioned in front o
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In a reactor, 2 kg of 92U235 fuel is fully used up in 30 days. The energy released per fission is 200 MeV. Given that th
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When radiation of wavelength $$\lambda $$ is used to illuminate a metallic surface, the stopping potential is V. When th
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A beam of protons with speed 4 × 105 ms–1 enters a uniform magnetic field of 0.3 T at an angle of 60° to the magnetic fi
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A small block starts slipping down from a point B on an inclined plane AB, which is making an angle $$\theta $$ with th
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An engine takes in 5 moles of air at 20oC and 1 atm, and compresses it adiabatically to 1/10th of the original volume. A
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A circular coil of radius 10 cm is placed in a uniform magnetic field of 3.0 $$ \times $$ 10–5 T with its plane perpendi
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A 5 $$\mu $$F capacitor is charged fully by a 220 V supply. It is then disconnected from the supply and is connected in
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