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JEE Main 2020 (Online) 4th September Morning Slot

Exam Held on Fri Sep 04 2020 03:30:00 GMT+0000 (Coordinated Universal Time)
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Chemistry

What are the functional groups present in the structure of maltose?
An organic compound (A) (molecular formula C<sub>6</sub>H<sub>12</sub>O<sub>2</s...
Which of the following will react with CHCl<sub>3</sub> + alc. KOH?
The elements with atomic numbers 101 and 104 belong to, respectively :
For one mole of an ideal gas, which of these statements must be true? <br>(a) U ...
The decreasing order of reactivity of the following organic molecules towards Ag...
Among statements (a) - (d), the correct ones are <br>(a) Lime stone is decompose...
The IUPAC name of the following compound is : <img src="https://imagex.cdn.examg...
On combustion of Li, Na and K in excess of air, the major oxides formed, respect...
Match the following :<br><br> <style type="text/css"> .tg {border-collapse:coll...
For the equilibrium A ⇌ B , the variation of the rate of the forward (a) and re...
The region in the electromagnetic spectrum where the Balmar series lines appear ...
The ionic radii of O<sup>2–</sup>, F<sup>–</sup>, Na<sup>+</sup> and Mg<sup>2+</...
When neopentyl alcohol is heated with an acid, it slowly converted into an 85 : ...
The number of isomers possible for <br>[Pt(en)(NO<sub>2</sub>)<sub>2</sub>] is :...
[P] on treatment with Br<sub>2</sub>/FeBr<sub>3</sub> in CCl<sub>4</sub> produce...
The pair in which both the species have the same magnetic moment (spin only) is ...
The intermolecular potential energy for the molecules A, B, C and D given below ...
<img src="https://imagex.cdn.examgoal.net/jgy2xukf9k3zfa/cf2fadce-54fb-43a0-8be6...
On heating, lead (II) nitrate gives a brown gas (A). The gas (A) on cooling chan...
The number of chiral centres present in [B] is _____. <picture><source media="(m...
If 75% of a first order reaction was completed in 90 minutes, 60% of the same re...
At 300 K, the vapour pressure of a solution containing 1 mole of n-hexane and 3 ...
The mass of ammonia in grams produced when 2.8 kg of dinitrogen quantitatively r...
A 20.0 mL solution containing 0.2 g impure H<sub>2</sub>O<sub>2</sub> reacts com...

Mathematics

The value of $$\sum\limits_{r = 0}^{20} {{}^{50 - r}{C_6}} $$ is equal to:
Let [t] denote the greatest integer $$ \le $$ t. Then the equation in x, <br>[x]...
Let y = y(x) be the solution of the differential equation, <br>xy'- y = x<sup>2<...
Let $$f\left( x \right) = \int {{{\sqrt x } \over {{{\left( {1 + x} \right)}^2}}...
Let P(3, 3) be a point on the hyperbola, <br>$${{{x^2}} \over {{a^2}}} - {{{y^2}...
Let $${{{x^2}} \over {{a^2}}} + {{{y^2}} \over {{b^2}}} = 1$$ (a &gt; b) be a gi...
If 1+(1–2<sup>2</sup>.1)+(1–4<sup>2</sup>.3)+(1-6<sup>2</sup>.5)+......+(1-20<su...
Let x<sub>0</sub> be the point of Local maxima of $$f(x) = \overrightarrow a .\l...
The integral $$\int {{{\left( {{x \over {x\sin x + \cos x}}} \right)}^2}dx} $$ i...
Let $$f(x) = \left| {x - 2} \right|$$ and g(x) = f(f(x)), $$x \in \left[ {0,4} \...
A triangle ABC lying in the first quadrant has two vertices as A(1, 2) and B(3, ...
Let f be a twice differentiable function on (1, 6). If f(2) = 8, f’(2) = 5, f’(x...
Let $$u = {{2z + i} \over {z - ki}}$$, z = x + iy and k &gt; 0. If the curve re...
Given the following two statements:<br><br> $$\left( {{S_1}} \right):\left( {q \...
If $$A = \left[ {\matrix{ {\cos \theta } &amp; {i\sin \theta } \cr {i\si...
A survey shows that 63% of the people in a city read newspaper A whereas 76% rea...
Let $$\alpha $$ and $$\beta $$ be the roots of x<sup>2</sup> - 3x + p=0 and $$\g...
The mean and variance of 8 observations are 10 and 13.5, respectively. If 6 of t...
Two vertical poles AB = 15 m and CD = 10 m are standing apart on a horizontal gr...
If $$\left( {a + \sqrt 2 b\cos x} \right)\left( {a - \sqrt 2 b\cos y} \right) = ...
Suppose a differentiable function f(x) satisfies the identity <br>f(x+y) = f(x) ...
If the equation of a plane P, passing through the intersection of the planes, <b...
If the system of equations<br> x - 2y + 3z = 9<br> 2x + y + z = b<br> x - 7y + a...
Let $${\left( {2{x^2} + 3x + 4} \right)^{10}} = \sum\limits_{r = 0}^{20} {{a_r}{...
The probability of a man hitting a target is $${1 \over {10}}$$. The least numbe...

Physics

Two charged thin infinite plane sheets of <br>uniform surface charge density $${...
A small bar magnet placed with its axis <br>at 30<sup>o</sup> with an external f...
A beam of plane polarised light of large<br> cross-sectional area and uniform in...
The specific heat of water<br> = 4200 J kg<sup>-1</sup>K<sup>-1</sup> and the la...
Take the breakdown voltage of the <br>zener diode used in the given circuit as 6...
Match the $${{{C_P}} \over {{C_V}}}$$ ratio for ideal gases with different type ...
A small bar magnet is moved through a coil at constant speed from one end to the...
A wire A, bent in the shape of an arc of a circle, carrying a current of 2 A and...
Particle A of mass m<sub>A</sub> = $${m \over 2}$$ moving along the x-axis with ...
A Tennis ball is released from a height h and after freely falling on a wooden f...
A two point charges 4q and -q are fixed on the x-axis at x = $$ - {d \over 2}$$ ...
A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the...
For a transverse wave travelling along a straight line, the distance between two...
Choose the correct option relating wave lengths of different parts of electromag...
On the x-axis and at a distance x from the origin, the gravitational field due a...
Dimensional formula for thermal conductivity is (here K denotes the temperature)...
Given figure shows few data points in a phot electric effect experiment for a ce...
Blocks of masses m, 2m, 4m and 8m are arranged in a line on a frictionless floor...
A air bubble of radius 1 cm in water has an upward acceleration 9.8 cm s<sup>–2<...
Starting from the origin at time t = 0, with initial velocity 5$$\widehat j$$ ms...
A closed vessel contains 0.1 mole of a monoatomic ideal gas at 200 K. If 0.05 mo...
A circular disc of mass M and radius R is rotating about its axis with angular s...
In a compound microscope, the magnified virtual image is formed at a distance of...

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