JEE Main 2024 (Online) 6th April Evening Shift

The major products formed :

A and B respectively are :

Consider the given reaction, identify the major product P.

The incorrect statement regarding the geometrical isomers of 2-butene is :

Number of carbocations from the following that are not stabilized by hyperconjugation is _______.

The correct arrangement for decreasing order of electrophilic substitution for above compounds is :

The incorrect statements regarding enzymes are :
(A) Enzymes are biocatalysts.
(B) Enzymes are non-specific and can catalyse different kinds of reactions.
(C) Most Enzymes are globular proteins.
(D) Enzyme - oxidase catalyses the hydrolysis...

Total number of species from the following with central atom utilising \(\mathrm{sp}^2\) hybrid orbitals for bonding is ________. $$\mathrm{NH}_3, \mathrm{SO}_2, \mathrm{SiO}_2, \mathrm{BeCl}_2, \mathrm{C}_2 \mathrm{H}_2, \mathrm{C}_2 \math...

Consider the following reactions

The number of protons that do not involve in hydrogen bonding in the product B is _________.

The ratio \(\frac{K_P}{K_C}\) for the reaction :
\(\mathrm{CO}_{(\mathrm{g})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} \rightleftharpoons \mathrm{CO}_{2(\mathrm{~g})}\) is :

Consider the two different first order reactions given below
$$\begin{aligned} & \mathrm{A}+\mathrm{B} \rightarrow \mathrm{C} \text { (Reaction 1) } \\ & \mathrm{P} \rightarrow \mathrm{Q} \text { (Reaction 2) } \end{aligned}$$
The ratio of ...

An amine \((\mathrm{X})\) is prepared by ammonolysis of benzyl chloride. On adding p-toluenesulphonyl chloride to it the solution remains clear. Molar mass of the amine \((\mathrm{X})\) formed is _________ \(\mathrm{g} \mathrm{mol}^{-1}\).
...

Identify the product A in the following reaction.

Given below are two statements :
Statement I : \(\mathrm{PF}_5\) and \(\mathrm{BrF}_5\) both exhibit \(\mathrm{sp}^3 \mathrm{~d}\) hybridisation.
Statement II : Both \(\mathrm{SF}_6\) and \([\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}\) exhibit $$\m...

Match List I with List II.

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The correct IUPAC name of \([\mathrm{PtBr}_2(\mathrm{PMe}_3)_2]\) is :

Arrange the following elements in the increasing order of number of unpaired electrons in it.
(A) \(\mathrm{Sc}\)
(B) \(\mathrm{Cr}\)
(C) \(\mathrm{V}\)
(D) \(\mathrm{Ti}\)
(E) \(\mathrm{Mn}\)
Choose the correct answer from the options give...

Among \(\mathrm{VO}_2^{+}, \mathrm{MnO}_4^{-}\) and \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}\), the spin-only magnetic moment value of the species with least oxidising ability is __________ BM (Nearest integer).
(Given atomic member $$\mathrm{V}=2...

How can an electrochemical cell be converted into an electrolytic cell ?

The ratio of number of oxygen atoms to bromine atoms in the product Q is _________ \(\times 10^{-1}\).

Consider the above chemical reaction. Product "A" is :

Evaluate the following statements related to group 14 elements for their correctness.
(A) Covalent radius decreases down the group from \(\mathrm{C}\) to \(\mathrm{Pb}\) in a regular manner.
(B) Electronegativity decreases from $$\mathrm{C}...

The correct statement among the following, for a "chromatography" purification method is :

The number of ions from the following that are expected to behave as oxidising agent is :
\(\mathrm{Sn}^{4+}, \mathrm{Sn}^{2+}, \mathrm{Pb}^{2+}, \mathrm{Tl}^{3+}, \mathrm{Pb}^{4+}, \mathrm{Tl}^{+}\)

Match List I with List II.

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overflow:hidden;padding:10px 5px;word-break:normal;}...

Match List I with List II.

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overflow:hidden;padding:10px 5px;word-break:normal;}...

During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in \(\mathrm{NH}_4 \mathrm{OH}\) solution when sodium carbonate extract was first acidified with dil. $$\mathrm{HNO}_...

When '\(x\)' \(\times 10^{-2} \mathrm{~mL}\) methanol (molar mass \(=32 \mathrm{~g}\)' density \(=0.792 \mathrm{~g} / \mathrm{cm}^3\)) is added to \(100 \mathrm{~mL}\). water (density \(=1 \mathrm{~g} / \mathrm{cm}^3\)), the following diagr...

Molality \((\mathrm{m})\) of \(3 \mathrm{M}\) aqueous solution of \(\mathrm{NaCl}\) is :
(Given : Density of solution \(=1.25 \mathrm{~g} \mathrm{~mL}^{-1}\), Molar mass in \(\mathrm{g} \mathrm{~mol}^{-1}: \mathrm{Na}-23, \mathrm{Cl}-35.5\)...

For hydrogen atom, energy of an electron in first excited state is \(-3.4 \mathrm{~eV}, \mathrm{K} . \mathrm{E}\). of the same electron of hydrogen atom is \(x \mathrm{~eV}\). Value of \(x\) is _________ \(\times 10^{-1} \mathrm{~eV}\). (Ne...

For the reaction at \(298 \mathrm{~K}, 2 \mathrm{~A}+\mathrm{B} \rightarrow \mathrm{C}, \Delta \mathrm{H}=400 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta S=0.2 \mathrm{~kJ} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\). The reaction will become ...