JEE Main 2020 (Online) 4th September Evening Slot

Paper was held on
Fri, Sep 4, 2020 9:30 AM

## Chemistry

Among the following compounds, which one
has the shortest C – Cl bond?

View Question The processes of calcination and roasting in
metallurgical industries, respectively, can Iead
to :

View Question The incorrect statement(s) among (a) - (c) is
(are)
(a) W(VI) is more stable than Cr(VI).
(b) In the presence of HCl, pe

View Question The process that is NOT endothermic in nature
is :

View Question The Crystal Field Stabilization Energy
(CFSE) of [CoF3(H2O)3] ($$\Delta $$0 < P) is :

View Question The one that can exhibit highest paramagnetic
behaviour among the following is :
gly = glycinato; bpy = 2, 2'-bipyridine

View Question In the following reaction sequence, [C] is :

View Question The reaction in which the hybridisation of the
underlined atom is affected is :

View Question An alkaline earth metal ‘M’ readily forms water
soluble sulphate and water insoluble hydroxide.
Its oxide MO is very sta

View Question If the equilibrium constant for A ⇌ B + C is $$K_{eq}^{(1)}$$ and that of
B + C ⇌ P is $$K_{eq}^{(2)}$$, the equilibrium

View Question The shortest wavelength of H atom in the
Lyman series is $$\lambda $$1. The longest wavelength in
the Balmar series of H

View Question Five moles of an ideal gas at 1 bar and 298 K
is expanded into vacuum to double the volume.
The work done is :

View Question 250 mL of a waste solution obtained from the
workshop of a goldsmith contains 0.1 M AgNO3
and 0.1 M AuCl. The solution w

View Question The major product [B] in the following
reactions is :

View Question The major product [C] of the following reaction
sequence will be :

View Question A sample of red ink (a colloidal suspension) is
prepared by mixing eosin dye, egg white, HCHO
and water. The component w

View Question The molecule in which hybrid MOs involve only
one d-orbital of the central atom is :

View Question The major product [R] in the following
sequence of reactions as :

View Question Which of the following compounds will form the
precipitate with aq. AgNO3 solution most
readily?

View Question The mechanism of action of ''Terfenadine''
(Seldane) is :

View Question The osmotic pressure of a solution of NaCl is
0.10 atm and that of a glucose solution is
0.20 atm. The osmotic pressure

View Question Consider the following equations :
2Fe2+ + H2O2 $$ \to $$ xA + yB
(in basic medium)
2MnO4- + 6H+ + 5H2O2 $$ \to $$ x'C

View Question The number of molecules with energy greater
than the threshold energy for a reaction
increases five fold by a rise of te

View Question A 100 mL solution was made by adding 1.43 g
of Na2CO3.xH2O. The normality of the solution
is 0.1 N. The value of x is __

View Question The number of chiral centres present in
threonine is ________.

View Question ## Mathematics

The distance of the point (1, –2, 3) from the plane x – y + z = 5 measured parallel to the line $${x \over 2} = {y \over

View Question Suppose the vectors x1, x2 and x3 are the solutions of the system of linear equations, Ax = b when the vector b on the r

View Question If a and b are real numbers such that $${\left( {2 + \alpha } \right)^4} = a + b\alpha $$ where $$\alpha = {{ - 1 + i\s

View Question If the perpendicular bisector of the line segment joining the points P(1 ,4) and Q(k, 3) has y-intercept equal to –4, th

View Question Contrapositive of the statement :
‘If a function f is differentiable at a, then it is also continuous at a’, is:

View Question Let $$f:\left( {0,\infty } \right) \to \left( {0,\infty } \right)$$ be a differentiable function such that f(1) = e and

View Question The minimum value of 2sinx + 2cosx is :

View Question The area (in sq. units) of the largest rectangle ABCD whose vertices A and B lie on the x-axis and vertices C and D lie

View Question The integral $$\int\limits_{{\pi \over 6}}^{{\pi \over 3}} {{{\tan }^3}x.{{\sin }^2}3x\left( {2{{\sec }^2}x.{{\sin }^2

View Question If the system of equations
x+y+z=2
2x+4y–z=6
3x+2y+$$\lambda $$z=$$\mu $$
has infinitely many solutions, then

View Question In a game two players A and B take turns in throwing a pair of fair dice starting with player A and total of scores on t

View Question If for some positive integer n, the coefficients of three consecutive terms in the binomial expansion of (1 + x)n + 5 ar

View Question The function $$f(x) = \left\{ {\matrix{
{{\pi \over 4} + {{\tan }^{ - 1}}x,} & {\left| x \right| \le 1} \cr

View Question The solution of the differential equation
$${{dy} \over {dx}} - {{y + 3x} \over {{{\log }_e}\left( {y + 3x} \right)}} +

View Question Let $$\lambda \ne 0$$ be in R. If $$\alpha $$ and $$\beta $$ are the roots of the equation, x2 - x + 2$$\lambda $$ = 0

View Question The angle of elevation of a cloud C from a point P, 200 m above a still lake is 30°. If the angle of depression of the i

View Question Let $$\mathop \cup \limits_{i = 1}^{50} {X_i} = \mathop \cup \limits_{i = 1}^n {Y_i} = T$$ where each Xi contains 10

View Question Let x = 4 be a directrix to an ellipse whose centre is at the origin and its eccentricity is $${1 \over 2}$$. If P(1, $$

View Question Let a1, a2, ..., an be a given A.P. whose common difference is an integer and Sn = a1 + a2 + .... + an. If a1 = 1, an =

View Question The circle passing through the intersection of the circles, x2 + y2 – 6x = 0 and x2 + y2 – 4y = 0, having its centre on

View Question Let {x} and [x] denote the fractional part of x and the greatest integer $$ \le $$ x respectively of a real number x. If

View Question Let PQ be a diameter of the circle x2 + y2 = 9. If $$\alpha $$ and $$\beta $$ are the lengths of the perpendiculars from

View Question If $$\overrightarrow a = 2\widehat i + \widehat j + 2\widehat k$$, then the value of
$${\left| {\widehat i \times \lef

View Question If the variance of the following frequency
distribution :
Class : 10–20

View Question A test consists of 6 multiple choice questions, each having 4 alternative answers of which only one is correct. The numb

View Question ## Physics

A circular coil has moment of inertia 0.8 kg m2
around any diameter and is carrying current to
produce a magnetic momen

View Question A person pushes a box on a rough horizontal plateform surface. He applies a force of 200 N over a
distance of 15 m. Ther

View Question A small ball of mass m is thrown upward with velocity u from the ground. The ball experiences a
resistive force mkv2
wh

View Question Match the thermodynamic processes taking place in a system with the correct conditions. In the
table : $$\Delta $$Q is t

View Question The driver of a bus approaching a big wall notices that the frequency of his bus's horn changes
from 420 Hz to 490 Hz wh

View Question A series L-R circuit is connected to a battery of emf V. If the circuit is switched on at t = 0, then
the time at which

View Question Consider two uniform discs of the same thickness and different radii R1
= R and R2
= $$\alpha $$R made of
the same mat

View Question The electric field of a plane electromagnetic wave is given by
$$\overrightarrow E = {E_0}\left( {\widehat x + \widehat

View Question A cube of metal is subjected to a hydrostatic pressure of 4 GPa. The percentage change in the
length of the side of the

View Question A paramagnetic sample shows a net magnetisation of 6 A/m when it is placed in an external
magnetic field of 0.4 T at a t

View Question A body is moving in a low circular orbit about a planet of mass M and radius R. The radius of the
orbit can be taken to

View Question A particle of charge q and mass m is subjected to an electric field E = E0
(1 – $$a$$x2) in the x-direction,
where $$a$

View Question A capacitor C is fully charged with voltage V0. After disconnecting the voltage source, it is connected
in parallel with

View Question Find the Binding energy per neucleon for $${}_{50}^{120}Sn$$. Mass of proton mp
= 1.00783 U, mass of neutron
mn
= 1.00

View Question Identify the operation performed by the circuit given below :

View Question The speed verses time graph for a particle is shown in the figure. The distance travelled (in m) by
the particle during

View Question A quantity x is given by $$\left( {{{IF{v^2}} \over {W{L^4}}}} \right)$$ in terms of moment of inertia I, force F, veloc

View Question Four resistances 40 $$\Omega $$, 60 $$\Omega $$, 90 $$\Omega $$ and 110 $$\Omega $$ make the arms of a quadrilateral ABC

View Question For a uniform rectangular sheet shown in the figure, the ratio of moments of inertia about the axes
perpendicular to the

View Question In a photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength
obtained is show

View Question The value of current i1
flowing from A to C in the circuit diagram is :

View Question Two identical cylindrical vessels are kept on the ground and each contain the same liquid of density
d. The area of the

View Question Orange light of wavelength 6000 $$ \times $$ 10–10 m illuminates a single slit of width 0.6 $$ \times $$ 10–4 m. The
max

View Question The change in the magnitude of the volume of an ideal gas when a small additional pressure $$\Delta $$P is
applied at a

View Question The distance between an object and a screen is 100 cm. A lens can produce real image of the
object on the screen for two

View Question