JEE Main 2023 (Online) 10th April Morning Shift
Paper was held on Mon, Apr 10, 2023 3:30 AM
View Questions

Chemistry

The compound which does not exist is
View Question
The enthalpy change for the adsorption process and micelle formation respectively are
View Question
The number of molecules and moles in 2.8375 litres of O$$_2$$ at STP are respectively
View Question
The one that does not stabilize 2$$^\circ$$ and 3$$^\circ$$ structures of proteins is
View Question
Lime reacts exothermally with water to give 'A' which has low solubility in water. Aqueous solution of 'A' is often used
View Question
Which of the following is used as a stabilizer during the concentration of sulphide ores?
View Question
The major product 'P' formed in the given reaction is
View Question
Prolonged heating is avoided during the preparation of ferrous ammonium sulphate to :
View Question
Which of the following statements are correct? (A) The M$$^{3+}$$/M$$^{2+}$$ reduction potential for iron is greater tha
View Question
The octahedral diamagnetic low spin complex among the following is :
View Question
Using column chromatography, mixture of two compounds 'A' and 'B' was separated. 'A' eluted first, this indicates 'B' ha
View Question
Given below are two reactions, involved in the commercial production of dihydrogen (H$$_2$$). The two reactions are carr
View Question
Given .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;f
View Question
Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:soli
View Question
Isomeric amines with molecular formula C$$_8$$H$$_{11}$$N give the following tests Isomer (P) $$\Rightarrow$$ Can be pre
View Question
Given below are two statements: Statement I : Aqueous solution of K$$_2$$Cr$$_2$$O$$_7$$ is preferred as a primary stand
View Question
Suitable reaction condition for preparation of Methyl phenyl ether is
View Question
Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:soli
View Question
Identify the correct order of reactivity for the following pairs towards the respective mechanism Choose the correct an
View Question
The pair from the following pairs having both compounds with net non-zero dipole moment is
View Question
In potassium ferrocyanide, there are ________ pairs of electrons in the $$t_{2g}$$ set of orbitals.
View Question
The number of bent-shaped molecule/s from the following is __________ N$$_3^-$$, NO$$_2^-$$, I$$_3^-$$, O$$_3$$, SO$$_2$
View Question
The number of correct statement/s involving equilibria in physical processes from the following is ________ (A) Equilibr
View Question
The sum of lone pairs present on the central atom of the interhalogen IF$$_5$$ and IF$$_7$$ is _________
View Question
The number of incorrect statement/s about the black body from the following is __________ (A) Emit or absorb energy in t
View Question
At constant temperature, a gas is at a pressure of 940.3 mm Hg. The pressure at which its volume decreases by 40% is ___
View Question
A molecule undergoes two independent first order reactions whose respective half lives are 12 min and 3 min. If both the
View Question
In the following reactions, the total number of oxygen atoms in X and Y is ___________. Na$$_2$$O + H$$_2$$O $$\to$$ 2X
View Question
$$\mathrm{FeO_4^{2 - }\buildrel { + 2.2V} \over \longrightarrow F{e^{3 + }}\buildrel { + 0.70V} \over \longrightarrow
View Question
If the degree of dissociation of aqueous solution of weak monobasic acid is determined to be 0.3, then the observed free
View Question

Mathematics

If $$I(x) = \int {{e^{{{\sin }^2}x}}(\cos x\sin 2x - \sin x)dx} $$ and $$I(0) = 1$$, then $$I\left( {{\pi \over 3}} \ri
View Question
The shortest distance between the lines $${{x + 2} \over 1} = {y \over { - 2}} = {{z - 5} \over 2}$$ and $${{x - 4} \ove
View Question
Let the ellipse $$E:{x^2} + 9{y^2} = 9$$ intersect the positive x and y-axes at the points A and B respectively. Let the
View Question
Let two vertices of a triangle ABC be (2, 4, 6) and (0, $$-$$2, $$-$$5), and its centroid be (2, 1, $$-$$1). If the imag
View Question
Let O be the origin and the position vector of the point P be $$ - \widehat i - 2\widehat j + 3\widehat k$$. If the posi
View Question
The negation of the statement $$(p \vee q) \wedge (q \vee ( \sim r))$$ is :
View Question
Let P be the point of intersection of the line $${{x + 3} \over 3} = {{y + 2} \over 1} = {{1 - z} \over 2}$$ and the pla
View Question
The slope of tangent at any point (x, y) on a curve $$y=y(x)$$ is $${{{x^2} + {y^2}} \over {2xy}},x > 0$$. If $$y(2) = 0
View Question
If $$f(x) = {{(\tan 1^\circ )x + {{\log }_e}(123)} \over {x{{\log }_e}(1234) - (\tan 1^\circ )}},x > 0$$, then the least
View Question
If the coefficient of $${x^7}$$ in $${\left( {ax - {1 \over {b{x^2}}}} \right)^{13}}$$ and the coefficient of $${x^{ - 5
View Question
An arc PQ of a circle subtends a right angle at its centre O. The mid point of the arc PQ is R. If $$\overrightarrow {OP
View Question
Let N denote the sum of the numbers obtained when two dice are rolled. If the probability that $${2^N}
View Question
If A is a 3 $$\times$$ 3 matrix and $$|A| = 2$$, then $$|3\,adj\,(|3A|{A^2})|$$ is equal to :
View Question
A square piece of tin of side 30 cm is to be made into a box without top by cutting a square from each corner and foldin
View Question
$$96\cos {\pi \over {33}}\cos {{2\pi } \over {33}}\cos {{4\pi } \over {33}}\cos {{8\pi } \over {33}}\cos {{16\pi } \ove
View Question
For the system of linear equations $$2x - y + 3z = 5$$ $$3x + 2y - z = 7$$ $$4x + 5y + \alpha z = \beta $$, which of the
View Question
A line segment AB of length $$\lambda$$ moves such that the points A and B remain on the periphery of a circle of radius
View Question
Let $$f$$ be a differentiable function such that $${x^2}f(x) - x = 4\int\limits_0^x {tf(t)dt} $$, $$f(1) = {2 \over 3}$$
View Question
Let the first term $$\alpha$$ and the common ratio r of a geometric progression be positive integers. If the sum of squa
View Question
Let the complex number $$z = x + iy$$ be such that $${{2z - 3i} \over {2z + i}}$$ is purely imaginary. If $${x} + {y^2}
View Question
Let $$f:( - 2,2) \to R$$ be defined by $$f(x) = \left\{ {\matrix{ {x[x],} & { - 2
View Question
Let $$y = p(x)$$ be the parabola passing through the points $$( - 1,0),(0,1)$$ and $$(1,0)$$. If the area of the region
View Question
The number of elements in the set $$\{ n \in Z:|{n^2} - 10n + 19|
View Question
If the mean of the frequency distribution .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;b
View Question
The number of permutations, of the digits 1, 2, 3, ..., 7 without repetition, which neither contain the string 153 nor t
View Question
The coefficient of $$x^7$$ in $${(1 - x + 2{x^3})^{10}}$$ is ___________.
View Question
Let a common tangent to the curves $${y^2} = 4x$$ and $${(x - 4)^2} + {y^2} = 16$$ touch the curves at the points P and
View Question
The sum of all those terms, of the arithmetic progression 3, 8, 13, ...., 373, which are not divisible by 3, is equal to
View Question
Some couples participated in a mixed doubles badminton tournament. If the number of matches played, so that no couple pl
View Question
Let a, b, c be three distinct positive real numbers such that $${(2a)^{{{\log }_e}a}} = {(bc)^{{{\log }_e}b}}$$ and $${b
View Question

Physics

Given below are two statements: Statement I : If the number of turns in the coil of a moving coil galvanometer is double
View Question
A physical quantity P is given as $$P = {{{a^2}{b^3}} \over {c\sqrt d }}$$ The percentage error in the measurement of a,
View Question
Given below are two statements: Statement I : Pressure in a reservoir of water is same at all points at the same level o
View Question
The energy of an electromagnetic wave contained in a small volume oscillates with
View Question
A carrier wave of amplitude 15 V is modulated by a sinusoidal base band signal of magnitude 3 V. The ratio of maximum am
View Question
The equivalent capacitance of the combination shown is :
View Question
Consider two containers A and B containing monoatomic gases at the same Pressure (P), Volume (V) and Temperature (T). Th
View Question
The range of the projectile projected at an angle of 15$$^\circ$$ with horizontal is 50 m. If the projectile is projecte
View Question
A particle executes S.H.M. of amplitude A along x-axis. At t = 0, the position of the particle is $$x=\frac{A}{2}$$ and
View Question
The de Broglie wavelength of a molecule in a gas at room temperature (300 K) is $$\lambda_1$$. If the temperature of the
View Question
The equivalent resistance of the circuit shown below between points a and b is :
View Question
An object is placed at a distance of 12 cm in front of a plane mirror. The virtual and erect image is formed by the mirr
View Question
Two satellites of masses m and 3m revolve around the earth in circular orbits of radii r & 3r respectively. The ratio of
View Question
The position-time graphs for two students A and B returning from the school to their homes are shown in figure. (A) A l
View Question
The angular momentum for the electron in Bohr's orbit is L. If the electron is assumed to revolve in second orbit of hyd
View Question
Given below are two statements: Statement I : Maximum power is dissipated in a circuit containing an inductor, a capacit
View Question
Match List I with List II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:so
View Question
Assuming the earth to be a sphere of uniform mass density, the weight of a body at a depth $$d=\frac{R}{2}$$ from the su
View Question
A zener diode of power rating 1.6 W is to be used as voltage regulator. If the zener diode has a breakdown of 8V and it
View Question
A particle of mass m moving with velocity v collides with a stationary particle of mass 2m. After collision, they stick
View Question
A transverse harmonic wave on a string is given by $$y(x,t) = 5\sin (6t + 0.003x)$$ where x and y are in cm and t in sec
View Question
10 resistors each of resistance 10 $$\Omega$$ can be connected in such as to get maximum and minimum equivalent resistan
View Question
A 1 m long metal rod XY completes the circuit as shown in figure. The plane of the circuit is perpendicular to the magne
View Question
A closed circular tube of average radius 15 cm, whose inner walls are rough, is kept in vertical plane. A block of mass
View Question
The decay constant for a radioactive nuclide is 1.5 $$\times$$ 10$$^{-5}$$ s$$^{-1}$$. Atomic weight of the substance is
View Question
Unpolarised light of intensity 32 Wm$$^{-2}$$ passes through the combination of three polaroids such that the pass axis
View Question
Three concentric spherical metallic shells X, Y and Z of radius a, b and c respectively [a
View Question
If the earth suddenly shrinks to $$\frac{1}{64}$$th of its original volume with its mass remaining the same, the period
View Question
The current required to be passed through a solenoid of 15 cm length and 60 turns in order of demagnetise a bar magnet o
View Question
Two wires each of radius 0.2 cm and negligible mass, one made of steel and the other made of brass are loaded as shown i
View Question
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12