JEE Main 2020 (Online) 5th September Evening Slot

The major product of the following reaction is :

Among the following compounds, geometrical isomerism is exhibited by :

The increasing order of boiling points of the following compounds is :

The number of chiral carbons present in
sucrose is _____.

The compound that has the largest H–M–H bond angle (M = N, O, S, C) is :

For a reaction X + Y ⇌ 2Z , 1.0 mol of X, 1.5 mol of Y and 0.5 mol of Z were taken in a 1 L
vessel and allowed to react. At equilibrium, the concentration of Z was 1.0 mol L–1. The equilibrium constant of reaction is \({x \over {15}}\). The...

The rate constant (k) of a reaction is measured at differenct temperatures (T), and the data are
plotted in the given figure. The activation energy of the reaction in kJ mol–1 is :
(R is gas constant)

The following molecule acts as an :

The final major product of the following reaction is :

Considering that \(\Delta\)0
> P, the magnetic moment (in BM) of [Ru(H2O)6]2+ would be _________.

Consider the complex ions,
trans-[Co(en)2Cl2]+ (A) and cis-[Co(en)2Cl2]+ (B).
The correct statement regarding them is :

The variation of molar conductivity with concentration of an electrolyte (X) in aqueous solution
is shown in the given figure.

The electrolyte X is :

The major product formed in the following reaction is :
CH3CH = CHCH(CH3)2 \(\buildrel {HBr} \over \longrightarrow\)

Hydrogen peroxide, in the pure state, is :

The one that is NOT suitable for the removal of permanent hardness of water is :

Reaction of ammonia with excess Cl2
gives :

Boron and silicon of very high purity can be obtained through :

The correct order of the ionic radii of O2–, N3–, F–
, Mg2+, Na+ and Al3+ is :

Which one of the following polymers is not obtained by condensation polymerisation?

The volume, in mL, of 0.02 M K2Cr2O7 solution
required to react with 0.288 g of ferrous
oxalate in acidic medium is _______.
(Molar mass of Fe = 56 g mol–1)

An element crystallises in a face-centred cubic (fcc) unit cell with cell edge \(a\). The distance
between the centres of two nearest octahedral voids in the crystal lattice is :

The correct statement about probability density (except at infinite distance from nucleus) is :

Adsorption of a gas follows Freundlich adsorption isotherm. If x is the mass of the gas adsorbed
on mass m of the adsorbent, the correct plot of \({x \over m}\) versus p is :

For a dimerization reaction,
2A(g) \(\to\) A2(g)
at 298 K, \(\Delta\)Uo
= –20 kJ mol–1, \(\Delta\)So
= –30
JK–1 mol–1, then the \(\Delta\)Go
will be _____ J.

Lattice enthalpy and enthalpy of solution of NaCl are 788 kJ mol–1, and 4 kJ mol–1, respectively.
The hydration enthalpy of NaCl is :