JEE Main 2020 (Online) 5th September Morning Slot

In the following reaction sequence the major
products A and B are :

The increasing order of the acidity of the \(\alpha\)-hydrogen of the following compounds is :

Which of the following derivatives of alcohols
is unstable in an aqueous base?

The number of chiral carbon(s) present in
peptide, Ile-Arg-Pro, is _____.

Which of the following is not an essential
amino acid :

The potential energy curve for the H2
molecule as a function of internuclear distance is :

The structure of PCl5
in the solid state is :

Consider the following reaction:
N2O4(g) ⇌ 2NO2(g); \(\Delta\)Ho = +58 kJ
For each of the following cases (a, b), the direction in which the equilibrium shifts is :
(a) Temperature is decreased.
(b) Pressure is increased by adding N2
at c...

A flask contains a mixture of compounds A and
B. Both compounds decompose by first-order
kinetics. The half-lives for A and B are 300 s
and 180 s, respectively. If the concentrations
of A and B are equal initially, the time required
for the...

If a person is suffering from the deficiency of
nor-adrenaline, what kind of drug can be
suggested?

The increasing order of basicity of the following
compounds is :

The most appropriate reagent for conversion of
C2H5CN into CH3CH2CH2NH2 is

The total number of coordination sites in ethylenediaminetetraacetate (EDTA4–) is _____.

The values of the crystal field stabilization
energies for a high spin d6 metal ion in
octahedral and tetrahedral fields, respectively,
are :

The correct electronic configuration and spin-only magnetic moment (BM) of Gd3+ (Z = 64),
respectively, are :

In the sixth period, the orbitals that are filled are :

An oxidation-reduction reaction in which 3 electrons are transferred has a \(\Delta\)Gº of 17.37 kJ mol–1 at
25 oC. The value of Eo
cell (in V) is ______ × 10–2.
(1 F = 96,500 C mol–1)

The condition that indicates a polluted environment
is :

The minimum number of moles of O2
required for complete combustion of 1 mole of propane and 2
moles of butane is _____.

The equation that represents the water-gas shift
reaction is :

A soft drink was bottled with a partial pressure of CO2
of 3 bar over the liquid at room temperature.
The partial pressure of CO2
over the solution approaches a value of 30 bar when 44 g of CO2
is
dissolved in 1 kg of water at room tempe...

An Ellingham diagram provides information
about :

A diatomic molecule X2
has a body-centred cubic
(bcc) structure with a cell edge of 300 pm. The
density of the molecule is 6.17 g cm–3. The number
of molecules present in 200 g of X2
is :
(Avogadro constant (N
A) = 6 \(\times\) 1023 mol...

The difference between the radii of 3rd and 4th
orbits of Li2+ is R1
. The difference between the
radii of 3rd and 4th orbits of He+ is
\(\Delta\)R2
. Ratio \(\Delta\)R1 : \(\Delta\)R2 is :

Identify the correct molecular picture showing
that happens at the critical micellar
concentration (CMC) of an aqueous solution of
a surfactant ( ◍ polar head; ∼ non-polar tail;
● water).