JEE Main 2020 (Online) 6th September Morning Slot

Paper was held on
Sun, Sep 6, 2020 3:30 AM

## Chemistry

The increasing order of pKb values of the
following compounds is :

View Question A solution of two components containing
n1 moles of the 1st component and n2 moles of
the 2nd component is prepared. M1

View Question For the reaction
Fe2N(s) + $${3 \over 2}$$H2(g) ⇌ 2Fe(s) + NH3(g)

View Question Arrange the following solutions in the
decreasing order of pOH :
(A) 0.01 M HCl
(B) 0.01 M NaOH
(C) 0.01 M CH3COONa
(D)

View Question The species that has a spin-only magnetic
moment of 5.9 BM, is :
(Td = tetrahedral)

View Question The major product of the following reaction is :

View Question The major products of the following reaction are :

View Question The lanthanoid that does NOT show +4 oxidation
state is :

View Question Which of the following compounds shows
geometrical isomerism?

View Question The major product obtained from the following
reaction is :

View Question The correct statement with respect to
dinitrogen is :

View Question Consider the following reactions
A $$ \to $$ P1 ; B $$ \to $$ P2 ; C $$ \to $$ P3 ; D $$ \to $$ P4,
The order of the abo

View Question The variation of equilibrium constant with
temperature is given below :
.tg {border-collapse:collapse;border-spacing:0

View Question Consider the following reactions
'A' is :

View Question The set that contains atomic numbers of only
transition elements, is :

View Question In an estimation of bromine by Carius method,
1.6 g of an organic compound gave 1.88 g of
AgBr. The mass percentage of b

View Question The number of Cl = O bonds in perchloric acid
is, "________".

View Question Potassium chlorate is prepared by the
electrolysis of KCl in basic solution
6OH- + Cl- $$ \to $$ ClO3- + 3H2O + 6e-
If o

View Question The elevation of boiling point of 0.10 m
aqueous CrCl3.xNH3 solution is two times that
of 0.05 m aqueous CaCl2 solution.

View Question ## Mathematics

The region represented by {z = x + iy $$ \in $$ C : |z| – Re(z) $$ \le $$ 1} is also given by the inequality :
{z = x +

View Question The general solution of the differential equation
$$\sqrt {1 + {x^2} + {y^2} + {x^2}{y^2}} $$ + xy$${{dy} \over {dx}}$$

View Question The area (in sq. units) of the region A = {(x, y) : |x| + |y| $$ \le $$ 1, 2y2 $$ \ge $$ |x|}

View Question Let a , b, c , d and p be any non zero distinct real numbers such that
(a2 + b2 + c2)p2 – 2(ab + bc + cd)p + (b2 + c2 +

View Question Two families with three members each and one family with four members are to be seated in a row.
In how many ways can th

View Question Let m and M be respectively the minimum and maximum values of
$$\left| {\matrix{
{{{\cos }^2}x} & {1 + {{\sin }^2

View Question The values of $$\lambda $$ and $$\mu $$ for which the system of linear equations
x + y + z = 2
x + 2y + 3z = 5
x + 3y +

View Question A ray of light coming from the point (2, $$2\sqrt 3 $$) is incident at an angle 30o on the line x = 1 at the
point A. Th

View Question Out of 11 consecutive natural numbers if three numbers are selected at random (without repetition), then the probability

View Question If f(x + y) = f(x)f(y) and $$\sum\limits_{x = 1}^\infty {f\left( x \right)} = 2$$ , x, y $$ \in $$ N, where N is the s

View Question If {p} denotes the fractional part of the number p, then
$$\left\{ {{{{3^{200}}} \over 8}} \right\}$$, is equal to :

View Question $$\mathop {\lim }\limits_{x \to 1} \left( {{{\int\limits_0^{{{\left( {x - 1} \right)}^2}} {t\cos \left( {{t^2}} \right)d

View Question If $$\sum\limits_{i = 1}^n {\left( {{x_i} - a} \right)} = n$$ and $$\sum\limits_{i = 1}^n {{{\left( {{x_i} - a} \right)

View Question If $$\alpha $$ and $$\beta $$ be two roots of the equation x2 – 64x + 256 = 0. Then the value of
$${\left( {{{{\alpha ^3

View Question The position of a moving car at time t is given by f(t) = at2 + bt + c, t > 0, where a, b and c are real
numbers grea

View Question If I1 = $$\int\limits_0^1 {{{\left( {1 - {x^{50}}} \right)}^{100}}} dx$$ and
I2 = $$\int\limits_0^1 {{{\left( {1 - {x^{5

View Question If $$\overrightarrow a $$
and $$\overrightarrow b $$
are unit vectors, then the greatest value of
$$\sqrt 3 \left| {\ove

View Question Let f : R $$ \to $$ R be defined as
$$f\left( x \right) = \left\{ {\matrix{
{{x^5}\sin \left( {{1 \over x}} \right) +

View Question Set A has m elements and set B has n elements. If the total number of subsets of A is 112 more
than the total number of

View Question ## Physics

An electron, a doubly ionized helium ion (He++) and a proton are having the same kinetic energy.
The relation between th

View Question A screw gauge has 50 divisions on its circular scale. The circular scale is 4 units ahead of the
pitch scale marking, pr

View Question Four point masses, each of mass m, are fixed at the corners of a square of side $$l$$. The square is
rotating with angul

View Question For the given input voltage waveform Vin(t), the output voltage waveform V0(t), across the
capacitor is correctly depict

View Question A satellite is in an elliptical orbit around a planet P. It is observed that the velocity of the satellite
when it is fa

View Question If the potential energy between two molecules is given by
U = $$ - {A \over {{r^6}}} + {B \over {{r^{12}}}}$$,
then at e

View Question You are given that Mass of $${}_3^7Li$$ = 7.0160u,
Mass of $${}_2^4He$$ = 4.0026u
and Mass of $${}_1^1H$$ = 1.0079u.
Whe

View Question Shown in the figure is a hollow icecream cone (it is open at the top). If its mass is M, radius of its
top, R and height

View Question An electron is moving along +x direction with a velocity of 6 $$ \times $$ 106
ms–1. It enters a region of uniform
elec

View Question Identify the correct output signal Y in the given combination of gates (as shown) for the given
inputs A and B.

View Question A clock has a continuously moving second's hand of 0.1 m length. The average acceleration of the
tip of the hand (in uni

View Question In the figure below, P and Q are two equally intense coherent sources emitting radiation of
wavelength 20 m. The separat

View Question An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts
slipping after it i

View Question A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A
plane mirror is pl

View Question An object of mass m is suspended at the end of a massless wire of length L and area of crosssection A. Young modulus of

View Question Molecules of an ideal gas are known to have three translational degrees of freedom and two
rotational degrees of freedom

View Question Two bodies of the same mass are moving with the same speed, but in different directions in a
plane. They have a complete

View Question A particle of charge q and mass m is moving with a velocity $$ - v\widehat i$$ (v $$ \ne $$ 0) towards a large screen
pl

View Question Charges Q1
and Q2
are at points A and B of a right angle triangle OAB (see figure). The resultant
electric field at po

View Question Suppose that intensity of a laser is $${{315} \over \pi }$$ W/m2. The rms electric field, in units of V/m associated
wit

View Question The density of a solid metal sphere is determined by measuring its mass and its diameter. The
maximum error in the densi

View Question Initially a gas of diatomic molecules is contained in a cylinder of volume V1
at a pressure P1
and
temperature 250 K.

View Question A part of a complete circuit is shown in the figure. At some instant, the value of current I is 1A and
it is decreasing

View Question