JEE Main 2024 (Online) 5th April Evening Shift

Consider the above reaction sequence and identify the major product P.

Which one of the following reactions is NOT possible?

In the Claisen-Schmidt reaction to prepare \(351 \mathrm{~g}\) of dibenzalacetone using \(87 \mathrm{~g}\) of acetone, the amount of benzaldehyde required is _________ g. (Nearest integer)

Consider the given chemical reaction :

Product "A" is :

The product C in the following sequence of reactions has ________ \(\pi\) bonds.

Identify A and B in the given chemical reaction sequence :

Match List - I with List - II.

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The correct nomenclature for the following compound is :

Using the given figure, the ratio of \(\mathrm{R}_f\) values of sample \(\mathrm{A}\) and sample \(\mathrm{C}\) is \(x \times 10^{-2}\). Value of \(x\) is __________.

Coagulation of egg, on heating is because of :

Match List I with List II.

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : \(\mathrm{NH}_3\) and \(\mathrm{NF}_3\) molecule have pyramidal shape with a lone pair of electrons on nitrogen atom....

Number of compounds from the following with zero dipole moment is _________.
$$\mathrm{HF}, \mathrm{H}_2, \mathrm{H}_2 \mathrm{~S}, \mathrm{CO}_2, \mathrm{NH}_3, \mathrm{BF}_3, \mathrm{CH}_4, \mathrm{CHCl}_3, \mathrm{SiF}_4, \mathrm{H}_2 \m...

Given below are two statements :
Statement I : On passing \(\mathrm{HCl}_{(\mathrm{g})}\) through a saturated solution of \(\mathrm{BaCl}_2\), at room temperature white turbidity appears.
Statement II : When \(\mathrm{HCl}\) gas is passed t...

Consider the following single step reaction in gas phase at constant temperature.
\(2 \mathrm{~A}_{(\mathrm{g})}+\mathrm{B}_{(\mathrm{g})} \rightarrow \mathrm{C}_{(\mathrm{g})}\)
The initial rate of the reaction is recorded as $$\mathrm{r}_...

\(\mathrm{X} \mathrm{~g}\) of ethanamine was subjected to reaction with \(\mathrm{NaNO}_2 / \mathrm{HCl}\) followed by hydrolysis to liberate \(\mathrm{N}_2\) and \(\mathrm{HCl}\). The \(\mathrm{HCl}\) generated was completely neutralised b...

The number of complexes from the following with no electrons in the \(t_2\) orbital is ______. $$\mathrm{TiCl}_4,\left[\mathrm{MnO}_4\right]^{-},\left[\mathrm{FeO}_4\right]^{2-},\left[\mathrm{FeCl}_4\right]^{-},\left[\mathrm{CoCl}_4\right]^...

The metal atom present in the complex MABXL (where A, B, X and L are unidentate ligands and \(\mathrm{M}\) is metal) involves \(\mathrm{sp}^3\) hybridization. The number of geometrical isomers exhibited by the complex is :

While preparing crystals of Mohr's salt, dil \(\mathrm{H}_2 \mathrm{SO}_4\) is added to a mixture of ferrous sulphate and ammonium sulphate, before dissolving this mixture in water, dil \(\mathrm{H_2SO_4}\) is added here to :

The number of ions from the following that have the ability to liberate hydrogen from a dilute acid is _________.
\(\mathrm{Ti}^{2+}, \mathrm{Cr}^{2+} \text { and } \mathrm{V}^{2+}\)

The fusion of chromite ore with sodium carbonate in the presence of air leads to the formation of products \(\mathrm{A}\) and \(\mathrm{B}\) along with the evolution of \(\mathrm{CO}_2\). The sum of spin-only magnetic moment values of A and...

The quantity of silver deposited when one coulomb charge is passed through \(\mathrm{AgNO}_3\) solution :

For the electro chemical cell
\(\mathrm{M}\left|\mathrm{M}^{2+}\right||\mathrm{X}| \mathrm{X}^{2-}\)
If \(\mathrm{E}_{\left(\mathrm{M}^{2+} / \mathrm{M}\right)}^0=0.46 \mathrm{~V}\) and $$\mathrm{E}_{\left(\mathrm{x} / \mathrm{x}^{2-}\right...

Identify the major product in the following reaction.

The correct statements from the following are :
(A) The decreasing order of atomic radii of group 13 elements is \(\mathrm{Tl}>\mathrm{In}>\mathrm{Ga}>\mathrm{Al}>\mathrm{B}\).
(B) Down the group 13 electronegativity decreases from top to b...

Given below are two statements :
Statement I : The metallic radius of \(\mathrm{Na}\) is \(1.86 \mathrm{~A}^{\circ}\) and the ionic radius of \(\mathrm{Na}^{+}\) is lesser than \(1.86 \mathrm{~A}^{\circ}\)
Statement II : Ions are always sma...

Considering acetic acid dissociates in water, its dissociation constant is \(6.25 \times 10^{-5}\). If \(5 \mathrm{~mL}\) of acetic acid is dissolved in 1 litre water, the solution will freeze at \(-x \times 10^{-2}{ }^{\circ} \mathrm{C}\),...

The number of moles of methane required to produce \(11 \mathrm{~g} \mathrm{~CO}_2(\mathrm{g})\) after complete combustion is : (Given molar mass of methane in \(\mathrm{g} \mathrm{~mol}^{-1}: 16\) )

In an atom, total number of electrons having quantum numbers \(\mathrm{n}=4,\left|\mathrm{~m}_l\right|=1\) and \(\mathrm{m}_{\mathrm{s}}=-\frac{1}{2}\) is _________.

Combustion of 1 mole of benzene is expressed at
\(\mathrm{C}_6 \mathrm{H}_6(\mathrm{l})+\frac{15}{2} \mathrm{O}_2(\mathrm{~g}) \rightarrow 6 \mathrm{CO}_2(\mathrm{~g})+3 \mathrm{H}_2 \mathrm{O}(\mathrm{l}) \text {. }\)
The standard enthalpy...