JEE Main 2019 (Online) 9th April Evening Slot

In the following reaction

Rate of the reaction is the highest for :

The major product of the following reaction is:

p-Hydroxybenzophenone upon reaction with
bromine in carbon tetrachloride gives:

The peptide that gives positive ceric
ammonium nitrate and carbylamine tests is :

HF has highest boiling point among hydrogen
halides, because it has :

Among the following species, the diamagnetic
molecule is

Consider the given plot of enthalpy of the
following reaction between A and B.
A+ B \(\to\) C + D
Identify the incorrect statement.

Noradrenaline is a/an

Hinsberg's reagent is :

The major products A and B for the following
reactions are, respectively:

The correct statements among I to III are :
(I) Valence bond theory cannot explain the
color exhibited by transition metal
complexes.
(II) Valence bond theory can predict
quantitatively the magnetic properties of
transtition metal complexes...

The maximum possible denticities of a ligand
given below towards a common transition and
inner-transition metal ion, respectively, are :

The maximum number of possible oxidation
states of actinoides are shown by :

A solution of Ni(NO3)2 is electrolysed between
platinum electrodes using 0.1 Faraday
electricity. How many mole of Ni will be
deposited at the cathode?

The layer of atmosphere between 10 km to
50 km above the sea level is called as :

At a given temperature T, gases Ne, Ar, Xe and
Kr are found to deviate from ideal gas
behaviour. Their equation of state is given as
\(p = {{RT} \over {V - b}}\) at T.
Here, b is the van der Waals constant. Which
gas will exhibit steepest i...

Which of the following potential energy (PE)
diagrams represents the SN1 reaction?

Increasing order of reactivity of the following
compounds for SN1 substitution is:

In an acid-base titration, 0.1 M HCl solution
was added to the NaOH solution of unknown
strength. Which of the following correctly
shows the change of pH of the titraction
mixture in this experiment?

Assertion: For the extraction of iron, haematite
ore is used.
Reason: Haematite is a carbonate ore of iron.

The one that is not a carbonate ore is :

The correct statements among I to III regarding
group 13 element oxides are,
(I) Boron trioxide is acidic.
(II) Oxides of aluminium and gallium are
amphoteric.
(III) Oxides of indium and thalliumare basic.

The amorphous form of silica is :

Which of the following compounds is a
constituent of the polymer

The structures of beryllium chloride in the solid
state and vapour, phase, respectively,are :

10 mL of 1mM surfactant solution forms a
monolayer covering 0.24 cm2 on a polar
substrate. If the polar head is approximated as
cube, what is its edge length?

Molal depression constant for a solvent is
4.0 kg mol–1. The depression in the freezing
point of the solvent for 0.03 mol kg–1 solution
of K2SO4 is :
(Assume complete dissociation of the
electrolyte)

What would be the molality of 20% (mass/
mass) aqueous solution of KI?
(molar mass of KI = 166 g mol–1)

Which one of the following about an electron
occupying the 1s orbital in a hydrogen atom is
incorrect ? (The Bohr radius is represented
by a0)

During compression of a spring the work done
is 10kJ and 2kJ escaped to the surroundings as
heat. The change in internal energy, \(\Delta\)U(inkJ)
is :

The vertices B and C of a \(\Delta\)ABC lie on the line,
\({{x + 2} \over 3} = {{y - 1} \over 0} = {z \over 4}\) such that BC = 5 units. Then the
area (in sq. units) of this triangle, given that the
point A(1, –1, 2), is :

Let P be the plane, which contains the line of
intersection of the planes, x + y + z – 6 = 0 and
2x + 3y + z + 5 = 0 and it is perpendicular to the
xy-plane. Then the distance of the point (0, 0, 256)
from P is equal to :

A water tank has the shape of an inverted right
circular cone, whose semi-vertical angle is
\({\tan ^{ - 1}}\left( {{1 \over 2}} \right)\). Water is poured into it at a constant
rate of 5 cubic meter per minute. The the rate
(in m/min.), at...

The area (in sq. units) of the region
A = {(x, y) : \({{y{}^2} \over 2}\) \(\le\) x \(\le\) y + 4} is :-

If some three consecutive in the binomial
expansion of (x + 1)n is powers of x are in the ratio
2 : 15 : 70, then the average of these three
coefficient is :-

A rectangle is inscribed in a circle with a diameter
lying along the line 3y = x + 7. If the two adjacent
vertices of the rectangle are (–8, 5) and (6, 5), then
the area of the rectangle (in sq. units) is :

The common tangent to the circles x 2 + y2 = 4 and
x2 + y2 + 6x + 8y – 24 = 0 also passes through the
point :

Let z \(\in\) C be such that |z| < 1.
If \(\omega = {{5 + 3z} \over {5(1 - z)}}\)z, then :

If f : R \(\to\) R is a differentiable function and
f(2) = 6, then \(\mathop {\lim }\limits_{x \to 2} {{\int\limits_6^{f\left( x \right)} {2tdt} } \over {\left( {x - 2} \right)}}\) is :-

The value of the integral \(\int\limits_0^1 {x{{\cot }^{ - 1}}(1 - {x^2} + {x^4})dx}\) is :-

If \(\cos x{{dy} \over {dx}} - y\sin x = 6x\), (0 < x < \({\pi \over 2}\))
and \(y\left( {{\pi \over 3}} \right)\) = 0 then \(y\left( {{\pi \over 6}} \right)\) is equal to :-

If the tangent to the parabola y2 = x at a point
(\(\alpha\), \(\beta\)), (\(\beta\) > 0) is also a tangent to the ellipse,
x2 + 2y2 = 1, then \(\alpha\) is equal to :

The domain of the definition of the function
\(f(x) = {1 \over {4 - {x^2}}} + {\log _{10}}({x^3} - x)\) is

Two poles standing on a horizontal ground are of
heights 5m and 10 m respectively. The line joining
their tops makes an angle of 15º with ground. Then
the distance (in m) between the poles, is :-

\(\int {{e^{\sec x}}}\) \((\sec x\tan xf(x) + \sec x\tan x + se{x^2}x)dx\)
= esecxf(x) + C then a possible choice of f(x) is :-

If the function \(f(x) = \left\{ {\matrix{ {a|\pi - x| + 1,x \le 5} \cr {b|x - \pi | + 3,x > 5} \cr } } \right.\)
is
continuous at x = 5, then the value of a – b is :-

If \(f(x) = [x] - \left[ {{x \over 4}} \right]\) ,x \(\in\)
4
, where [x] denotes the
greatest integer function, then

If p \(\Rightarrow\) (q \(\vee\) r) is false, then the truth values of p,
q, r are respectively :-

If the system of equations 2x + 3y – z = 0, x + ky
– 2z = 0 and 2x – y + z = 0 has a non-trival solution
(x, y, z), then \({x \over y} + {y \over z} + {z \over x} + k\)
is equal to :-

The total number of matrices
\(A = \left( {\matrix{ 0 & {2y} & 1 \cr {2x} & y & { - 1} \cr {2x} & { - y} & 1 \cr } } \right)\)
(x, y \(\in\) R,x \(\ne\) y) for which ATA = 3I3 is :-