JEE Main 2026 (Online) 4th April Morning Shift

\(\text { Identify the colour of compound ' } \mathrm{X} \text { ' in the sequence of the reaction. }\)

\(\text { Consider the following sequence of reactions to give the major product }(\mathrm{X})\)

P g of the major product $(\mathrm{X})$ formed is reacted with $\mathrm{NaHCO}_3$ solution to liberate a gas which occupied $11.2 \mathrm{dm...

Increasing order of electron withdrawing power of following functional groups is :
a. -CN
b. -COOH
c. $-\mathrm{NO}_2$
d. -I

Given below are two statements :

Statement I : The structure of Maltose is given below:


Statement II : The structure of Lactose is given below :

In the light of the above statements, choose the correct answer from the options given belo...

Match the List-I with List-II
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According to Lewis theory, the total number of $\sigma$ bond-pairs and lone pair of electrons around the central atom of $\mathrm{XeO}_6{ }^{4-}$ ion is $\_\_\_\_$ .

At $\mathrm{T}(\mathrm{K})$, the equilibrium constant of
$\mathrm{A}_2(g)+\mathrm{B}_2(g) \rightleftharpoons \mathrm{C}(g)$ is $2.7 \times 10^{-5}$.
What is the equilibrium constant for
$\frac{1}{3} \mathrm{~A}_2(\mathrm{~g})+\frac{1}{3}...

Consider the first order reaction $\mathrm{R} \rightarrow \mathrm{P}$.
The fraction of molecules decomposed in the given first order reaction can be expressed as

Product C of the following reaction sequence will be

\(\text { Match the LIST-I with LIST-II }\)


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Correct statements from the following are
A. Potassium dichromate is an oxidising agent and it oxidises $\mathrm{FeSO}_4$ to $\mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3$ in acidic medium.
B. Sodium dichromate can be used as primary standard ...

The correct statements among the following are,
A. $\mathrm{Mo}(\mathrm{VI})$ and $\mathrm{W}(\mathrm{VI})$ are less stable than $\mathrm{Cr}(\mathrm{VI})$.
B. $\mathrm{Ce}^{4+}$ and $\mathrm{Tb}^{4+}$ are oxidant while $\mathrm{Eu}^{2+}$ a...

\(\text { Match the LIST-I with LIST-II }\)


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\(\text { An alkene }(\mathrm{X}) \text { on ozonolysis followed by reduction gives following products. }\)

\(\text { The alkene }(\mathrm{X}) \text { is : }\)

The pH of a solution obtained by mixing 5 mL of $0.1 \mathrm{M} \mathrm{NH}_4 \mathrm{OH}$ solution with 250 mL of $0.1 \mathrm{M} \mathrm{NH}_4 \mathrm{Cl}$ solution is $\_\_\_\_$ $\times 10^{-2}$.(Nearest integer) Given: $\mathrm{pK}_{\ma...

Given below are two statements :
Statement I : The covalency of oxygen is generally two but it can exceed upto four. The oxidation state of oxygen in $\mathrm{SO}_2$ is -2 and in $\mathrm{OF}_2$ it is +2 .
Statement II : The anomalous behav...

A monoatomic anion (A ) has 45 neutrons and 36 electrons. Atomic mass, group in the periodic table and physical state at room temperature of the element (A) respectively are

2.0 g of a bromo hydrocarbon $(\mathrm{X})$ was subjected to Carius analysis, gave 3.36 g of AgBr . The percentage of carbon in the compound $(\mathrm{X})$ is $26.7 \%$. Total number of carbon atoms in the empirical formula for compound $(\...

Amongst the following, the total number of compounds soluble in aqueous NaOH at room temperature is :

In order to oxidise a mixture of 1 mole each of $\mathrm{FeC}_2 \mathrm{O}_4, \mathrm{Fe}_2\left(\mathrm{C}_2 \mathrm{O}_4\right)_3, \mathrm{FeSO}_4$ and $\mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3$ in acidic medium, the number of moles of $...

A non-volatile, non-electrolyte solid solute when dissolved in 40 g of a solvent, the vapour pressure of the solvent decreased from 760 mm Hg to 750 mm Hg . If the same solution boils at 320 K , then the number of moles of the solvent prese...

Number of moles and number of molecules in 1.4187 L of $\mathrm{SO}_2$ at STP respectively are

Which of the following is correct set of 4 quantum numbers of $19^{\text {th }}$ electron in Chromium (Atomic number $=24$ ) in accordance with Aufbau principle?

What is the ratio of wave number of first line (lowest energy line) of Balmer series of H atomic spectrum to first line of its Brackett series?

Given below are two statements :
Statement I : For an ideal gas, heat capacity at constant volume is always greater than the heat capacity at constant pressure.
Statement II : In a constant volume process, no work is produced and all the he...