JEE Main 2019 (Online) 8th April Evening Slot

Paper was held on
Mon, Apr 8, 2019 9:30 AM

## Chemistry

Calculate the standard cell potential in (V) of the
cell in which following reaction takes place :
Fe2+(aq) + Ag+(aq) $$

View Question The major product in the following reaction is :

View Question For the following reactions, equilibrium
constants are given :
S(s) + O2(g) ⇋ SO2(g); K1 = 1052
2S(s) + 3O2(g) ⇋ 2SO3

View Question The ion that has sp3d2 hybridization for the
central atom, is :

View Question The major product of the following reaction is:

View Question The structure of Nylon-6 is :

View Question The major product of the following reaction is:

View Question The percentage composition of carbon by mole
in methane is :

View Question The IUPAC symbol for the element with atomic
number 119 would be :

View Question The compound that inhibits the growth of
tumors is :

View Question The covalent alkaline earth metal halide
(X = Cl, Br, I) is :

View Question The maximum prescribed concentration of
copper in drinking water is :

View Question Which one of the following alkenes when
treated with HCl yields majorly an anti
Markovnikov product?

View Question The calculated spin-only magnetic moments
(BM) of the anionic and cationic species of
[Fe(H2O)6]2 and [Fe(CN)6], respect

View Question Among the following molecules / ions,
$$C_2^{2 - },N_2^{2 - },O_2^{2 - },{O_2}$$
which one is diamagnetic and has the sh

View Question For a reaction scheme $$A\buildrel {{k_1}} \over
\longrightarrow B\buildrel {{k_2}} \over
\longrightarrow C$$,
if
the

View Question The statement that is INCORRECT about the
interstitial compounds is :

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

View Question 5 moles of an ideal gas at 100 K are allowed
to undergo reversible compression till its
temperature becomes 200 K.
If CV

View Question 0.27 g of a long chain fatty acid was dissolved
in 100 cm3 of hexane. 10 mL of this solution
was added dropwise to the s

View Question Which of the following compounds will show
the maximum 'enol' content?

View Question The correct statement about ICl5 and $$ICl_4^-$$ is

View Question The major product obtained in the following
reaction is

View Question Consider the bcc unit cells of the solids 1 and
2 with the position of atoms as shown below.
The radius of atom B is twi

View Question Fructose and glucose can be distinguished by :

View Question If p is the momentum of the fastest electron
ejected from a metal surface after the irradiation
of light having waveleng

View Question The strength of 11.2 volume solution of H2O2
is : [Given that molar mass of H = 1 g mol–1
and O = 16 g mol–1]

View Question Polysubstitution is a major drawback in:

View Question The Mond process is used for the

View Question For the solution of the gases w, x, y and z in
water at 298K, the Henrys law constants (KH)
are 0.5, 2, 35 and 40 kbar,

View Question ## Mathematics

The minimum number of times one has to toss a
fair coin so that the probability of observing at least
one head is at lea

View Question A student scores the following marks in five tests
:
45, 54, 41, 57, 43.
His score is not known for the
sixth test. If

View Question The sum
$$\sum\limits_{k = 1}^{20} {k{1 \over {{2^k}}}} $$ is equal to

View Question If the eccentricity of the standard hyperbola
passing through the point (4,6) is 2, then the
equation of the tangent to

View Question Let ƒ(x) = ax
(a > 0) be written as
ƒ(x) = ƒ1
(x) + ƒ2
(x), where ƒ1
(x) is an even
function of ƒ2
(x) is an odd fun

View Question If the system of linear equations
x – 2y + kz = 1
2x + y + z = 2
3x – y – kz = 3
has a solution (x,y,z), z $$ \ne $$ 0,

View Question If the lengths of the sides of a triangle are in A.P.
and the greatest angle is double the smallest, then
a ratio of len

View Question The vector equation of the plane through the line
of intersection of the planes x + y + z = 1 and 2x
+ 3y+ 4z = 5 which

View Question Which one of the following statements is not a
tautology?

View Question Let S($$\alpha $$) = {(x, y) : y2
$$ \le $$ x, 0 $$ \le $$ x $$ \le $$ $$\alpha $$} and A($$\alpha $$)
is area of the r

View Question Given that the slope of the tangent to a curve y
= y(x) at any point (x, y) is
$$2y \over x^2$$. If the curve passes th

View Question Let $$\mathop a\limits^ \to = 3\mathop i\limits^ \wedge + 2\mathop j\limits^ \wedge + x\mathop k\limits^ \wedge $

View Question If the fourth term in the binomial expansion of
$${\left( {\sqrt {{x^{\left( {{1 \over {1 + {{\log }_{10}}x}}} \right)}}

View Question Let ƒ : R $$ \to $$ R be a differentiable function
satisfying ƒ'(3) + ƒ'(2) = 0.
Then $$\mathop {\lim }\limits_{x \to 0}

View Question The tangent to the parabola y2
= 4x at the point
where it intersects the circle x2
+ y2
= 5 in the
first quadrant, pa

View Question Let the number 2,b,c be in an A.P. and
A = $$\left[ {\matrix{
1 & 1 & 1 \cr
2 & b & c \cr
4

View Question If a point R(4, y, z) lies on the line segment joining
the points P(2, –3, 4) and Q(8, 0, 10), then the
distance of R fr

View Question The number of integral values of m for which the
equation
(1 + m2
)x2
– 2(1 + 3m)x + (1 + 8m) = 0
has no real root is :

View Question If three distinct numbers a, b, c are in G.P. and the
equations ax2
+ 2bx + c = 0 and
dx2
+ 2ex + ƒ = 0 have a common

View Question Let $$f(x) = \int\limits_0^x {g(t)dt} $$ where g is a non-zero even
function. If ƒ(x + 5) = g(x), then $$ \int\limits_0

View Question If $$z = {{\sqrt 3 } \over 2} + {i \over 2}\left( {i = \sqrt { - 1} } \right)$$,
then (1 + iz + z5 + iz8)9 is equal to

View Question The tangent and the normal lines at the point
( $$\sqrt 3 $$, 1) to the circle x2
+ y2 = 4 and the x-axis form a triang

View Question In an ellipse, with centre at the origin, if the
difference of the lengths of major axis and minor
axis is 10 and one of

View Question If ƒ(1) = 1, ƒ'(1) = 3, then the derivative of
ƒ(ƒ(ƒ(x))) + (ƒ(x))2
at x = 1 is :

View Question If $$\int {{{dx} \over {{x^3}{{(1 + {x^6})}^{2/3}}}} = xf(x){{(1 + {x^6})}^{{1 \over 3}}} + C} $$
where C is a constant

View Question Suppose that the points (h,k), (1,2) and (–3,4) lie
on the line L1
. If a line L2
passing through the points
(h,k) and

View Question Let ƒ : [–1,3] $$ \to $$ R be defined as
$$f(x) = \left\{ {\matrix{
{\left| x \right| + \left[ x \right]} & , &am

View Question The number of four-digit numbers strictly greater
than 4321 that can be formed using the digits
0,1,2,3,4,5 (repetition

View Question Two vertical poles of heights, 20 m and 80 m stand
a part on a horizontal plane. The height (in meters)
of the point of

View Question The height of a right circular cylinder of maximum
volume inscribed in a sphere of radius 3 is

View Question ## Physics

A circuit connected to an ac source of emf
e = e0sin(100t) with t in seconds, gives a phase
difference of $$\pi $$/4 bet

View Question Two very long, straight, and insulated wires are
kept at 90° angle from each other in xy-plane
as shown in the figure. T

View Question In the circuit shown, a four-wire potentiometer
is made of a 400 cm long wire, which extends
between A and B. The resist

View Question A particle starts from origin O from rest and
moves with a uniform acceleration along the
positive x-axis. Identify all

View Question An electric dipole is formed by two equal and
opposite charges q with separation d. The
charges have same mass m. It is

View Question In a line of sight radio communication, a
distance of about 50 km is kept between the
transmitting and receiving antenna

View Question A common emitter amplifier circuit, built using
an npn transistor, is shown in the figure. Its dc
current gain is 250, R

View Question A cell of internal resistance r drives current
through an external resistance R. The power
delivered by the cell to the

View Question The magnetic field of an electromagnetic wave
is given by :-
$$\mathop B\limits^ \to = 1.6 \times {10^{ - 6}}\cos \lef

View Question Calculate the limit of resolution of a telescope
objective having a diameter of 200 cm, if it has
to detect light of wav

View Question The ratio of mass densities of nuclei of 40Ca
and 16O is close to :-

View Question Young's moduli of two wires A and B are in the
ratio 7 : 4. Wire A is 2 m long and has radius R.
Wire B is 1.5 m long an

View Question A solid sphere and solid cylinder of identical
radii approach an incline with the same linear
velocity (see figure). Bot

View Question A rocket has to be launched from earth in such
a way that it never returns. If E is the minimum
energy delivered by the

View Question The given diagram shows four processes i.e.,
isochoric, isobaric, isothermal and adiabatic.
The correct assignment of th

View Question A damped harmonic oscillator has a frequency
of 5 oscillations per second. The amplitude
drops to half its value for eve

View Question A positive point charge is released from rest at
a distance r0 from a positive line charge with
uniform density. The spe

View Question The electric field in a region is given by
$$\mathop E\limits^ \to = \left( {Ax + B} \right)\mathop i\limits^ \wedge

View Question A parallel plate capacitor has 1μF capacitance.
One of its two plates is given +2μC charge and
the other plate, +4μC cha

View Question In a simple pendulum experiment for
determination of acceleration due to gravity (g),
time taken for 20 oscillations is

View Question A uniform rectangular thin sheet ABCD of
mass M has length a and breadth b, as shown
in the figure. If the shaded portio

View Question The temperature, at which the root mean square
velocity of hydrogen molecules equals their
escape velocity from the eart

View Question A rectangular solid box of length 0.3 m is held
horizontally, with one of its sides on the edge
of a platform of height

View Question A convex lens (of focal length 20 cm) and a
concave mirror, having their principal axes
along the same lines, are kept 8

View Question If surface tension (S), Moment of inertia (I) and
Planck's constant (h), were to be taken as the
fundamental units, the

View Question In the figure shown, what is the current
(in Ampere) drawn from the battery ? You are
given:
R1 = 15$$\Omega $$, R2 = 10

View Question A body of mass m1 moving with an unknown
velocity of $${v_1}\mathop i\limits^ \wedge $$, undergoes a collinear collisio

View Question A nucleus A, with a finite de-broglie
wavelength $$\lambda $$A, undergoes spontaneous fission
into two nuclei B and C of

View Question Let $$\left| {\mathop {{A_1}}\limits^ \to } \right| = 3$$, $$\left| {\mathop {{A_2}}\limits^ \to } \right| = 5$$ and

View Question Two magnetic dipoles X and Y are placed at
a separation d, with their axes perpendicular to
each other. The dipole momen

View Question