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## JEE Main 2019 (Online) 12th April Morning Slot

Exam Held on Fri Apr 12 2019 03:30:00 GMT+0000 (Coordinated Universal Time)
Click View All Questions to see questions one by one or you can choose a single question from below.

## Chemistry

The basic structural unit of feldspar, zeolites, mica, and asbestos is :
Which of the following is a thermosetting polymer?
The correct set of species responsible for the photochemical smog is :
The major product of the following reaction is : <picture><source media="(max-wi...
The mole fraction of a solvent in aqueous solution of a solute is 0.8. The molal...
Glucose and Galactose are having identical configuration in all the positions ex...
The correct sequence of thermal stability of the following carbonates is :
What is the molar solubility of Al(OH)<sub>3</sub> in 0.2 M NaOH solution ? Give...
The major products of the following reaction are : <picture><source media="(max-...
Which of the following statements is not true about RNA?
Enthalpy of sublimation of iodine is 24 cal g<sup>–1 </sup> at 200 <sup>o</sup>C...
Peptization is a :
The idea of froth floatation method came from a person X and this method is rela...
An organic compound 'A' is oxidizod with Na<sub>2</sub>O<sub>2</sub> followed by...
The electrons are more likely to be found : <picture><source media="(max-width: ...
But-2-ene on reaction with alkaline KMnO<sub>4</sub> at elevated temperature fol...
An ideal gas is allowed to expand form 1 L to 10 L against a constant external p...
The major product of the following addition reaction is : <br>H<sub>3</sub>C–CH=...
An element has a face-centred cubic (fcc) structure with a cell edge of $$a$$. T...
In the following reaction; xA $$\to$$ yB <br>$${\log _{10}}\left[ { - {{d\left... The major product(s) obtained in the following reaction is/are : <br><picture><s... The complex ion that will lose its crystal field stabilization energy upon oxida... The group number, number of valence electrons, and valency of an element with at... The increasing order of the pK<sub>b</sub> of the following compound is : <pictu... 5 moles of AB<sub>2</sub> weigh 125 × 10<sup>–3</sup> kg and 10 moles of A<sub>... Complete removal of both the axial ligands (along the z-axis) from an octahedral... An example of a disproportionation reaction is : Given <br>CO<sup>3+</sup> + e<sup>–</sup>$$ \to $$CO<sub>2</sub><sup>+</sup> ;... The correct statement among the following is : The metal that gives hydrogen gas upon treatment with both acid as well as base ... ## Mathematics The integral$$\int {{{2{x^3} - 1} \over {{x^4} + x}}} dx$$is equal to : <br>(H... For x$$ \in $$(0, 3/2), let f(x) =$$\sqrt x $$, g(x) = tan x and h(x) =$${{...
Let P be the point of intersection of the common tangents to the parabola y<sup>...
If $$\int\limits_0^{{\pi \over 2}} {{{\cot x} \over {\cot x + \cos ecx}}} dx$$ ...
The number of solutions of the equation <br> 1 + sin<sup>4</sup> x = cos<sup>2...
The equation |z – i| = |z – 1|, i = $$\sqrt { - 1}$$, represents :
If $$\alpha$$ and $$\beta$$ are the roots of the equation 375x<sup>2</sup> – 2...
If e<sup>y</sup> + xy = e, the ordered pair $$\left( {{{dy} \over {dx}},{{{d^2}... The number of ways of choosing 10 objects out of 31 objects of which 10 are iden... For x$$\varepsilon $$R, let [x] denote the greatest integer$$ \le $$x, then ... If m is the minimum value of k for which the function f(x) = x$$\sqrt {kx - {x^2...
If the angle of intersection at a point where the two circles with radii 5 cm an...
The coefficient of x<sup>18</sup> in the product <br>(1 + x) (1 – x)<sup>10</sup...
Consider the differential equation, $${y^2}dx + \left( {x - {1 \over y}} \right)... If the area (in sq. units) of the region {(x, y) : y<sup>2</sup>$$ \le $$4x, x... If A is a symmetric matrix and B is a skew-symmetric matrix such that A + B =$$...
If the data x<sub>1</sub>, x<sub>2</sub>,......., x<sub>10</sub> is such that th...
If the normal to the ellipse 3x<sup>2</sup> + 4y<sup>2</sup> = 12 at a point P...
Let $$\overrightarrow a = 3\widehat i + 2\widehat j + 2\widehat k$$ and $$\over... If$$B = \left[ {\matrix{ 5 &amp; {2\alpha } &amp; 1 \cr 0 &amp; 2 &amp;...
A 2 m ladder leans against a vertical wall. If the top of the ladder begins to s...
The equation y = sinx sin (x + 2) – sin<sup>2</sup> (x + 1) represents a straig...
If the truth value of the statement p $$\to$$ (~q $$\vee$$ r) is false (F), ...
If the volume of parallelopiped formed by the vectors $$\widehat i + \lambda \wi... Let S<sub>n</sub> denote the sum of the first n terms of an A.P. If S<sub>4</sub... Let f : R$$ \to $$R be a continuously differentiable function such that f(2) =... Let a random variable X have a binomial distribution with mean 8 and variance 4.... The value of$${\sin ^{ - 1}}\left( {{{12} \over {13}}} \right) - {\sin ^{ - 1}}...
If three of the six vertices of a regular hexagon are chosen at random, then the...
If the line $${{x - 2} \over 3} = {{y + 1} \over 2} = {{z - 1} \over { - 1}}$$ ...

## Physics

A circular disc of radius b has a hole of radius a at its centre (see figure). I...
A shell is fired from a fixed artillery gun with an initial speed u such that it...
Shown in the figure is a shell made of a conductor. It has inner radius a and ou...
A thin ring of 10 cm radius carries a uniformly distributed charge. The ring rot...
A uniform rod of length $$\ell$$ is being rotated in a horizontal plane with a ...
The stopping potential V<sub>0</sub> (in volt) as a function of frequency ($$\up... The value of numerical aperature of the objective lens of a microscope is 1.25. ... Two identical parallel plate capacitors, of capacitance C each, have plates of a... In a double slit experiment, when a thin film of thickness t having refractive i... The resistive network shown below is connected to a D.C. source of 16 V. The pow... The trajectory of a projectile near the surface of the earth is given as y = 2x ... A person of mass M is, sitting on a swing of length L and swinging with an angul... A point dipole$$\overrightarrow p = - {p_0}\widehat x$$is kept at the origin... A galvanometer of resistance 100$$\Omega $$has 50 divisions on its scale and h... The truth table for the circuit given in the fig. is: <img src="https://imagex.c... The figure shows a square loop L of side 5 cm which is connected to a network of... A sample of an ideal gas is taken through the cyclic process abca as shown in th... At 40<sup>o</sup> C, a brass wire of 1 mm radius is hung from the ceiling. A sma... An electromagnetic wave is represented by the electric field$$\overrightarrow E...
To verify Ohm's law, a student connects the voltmeter across the battery as, sho...
A concave mirror has radius of curvature of 40 cm. It is at the bottom of a glas...
Two moles of helium gas is mixed with three moles of hydrogen molecules (taken t...
A magnetic compass needle oscillates 30 times per minute at a place where the di...
Which of the following combinations has the dimension of electrical resistance (...
The transfer characteristic curve of a transistor, having input and output resis...
When M<sub>1</sub> gram of ice at –10<sup>o</sup>C (specific heat = 0.5 cal g<su...
A man (mass = 50 kg) and his son (mass = 20 kg) are standing on a frictionless s...
A progressive wave travelling along the positive x-direction is represented by y...
An excited He<sup>+</sup> ion emits two photons in succession, with wavelengths...
A submarine (A) travelling at 18 km/hr is being chased along the line of its vel...

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