JEE Main 2026 (Online) 5th April Morning Shift

Consider compounds $\mathrm{A}, \mathrm{B}$ and C with following structural formulae
$$ \begin{aligned} & \mathrm{A}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{OH} \\ & \mathrm{~B}=\mathrm{CH}_2=\mathrm{CH...

One mole of phenol is treated with dilute $\mathrm{HNO}_3$ at 298 K to give a mixture of products. The mixture is separated by steam distillation. The steam volatile compound $(\mathrm{X})$ is separated. The increase in percentage of oxygen...

Given below are two statements :
Statement I : On the basis of inductive effect, the order of stability of alkyl carbanions is $\mathrm{CH}_3{ }^{-}>\mathrm{CH}_3-\mathrm{CH}_2{ }^{-}>\left(\mathrm{CH}_3\right)_2 \mathrm{CH}^{-}>\left(\math...

Identify the correct statements.
A. Glucose exists in two anomeric forms.
B. Anomers of glucose differ in configuration at $\mathrm{C}-1$ in cyclic hemiacetal structure.
C. Melting point of $\alpha$ - anomer of glucose is greater than $\bet...

Consider the following species:
\(\mathrm{BrF}_5, \mathrm{XeF}_5^{-}, \mathrm{BF}_4^{-}, \mathrm{ICl}_4^{-}, \mathrm{XeF}_4, \mathrm{SF}_4, \mathrm{NH}_4^{+}, \mathrm{ClF}_3, \mathrm{XeF}_2, \mathrm{ICl}_2^{-}\)
Number of species having $...

The values of pressure equilibrium constant recorded at different temperatures for the following equilibrium reaction have been given below $\mathrm{A}(\mathrm{g}) \rightleftharpoons \mathrm{B}(\mathrm{g})+\mathrm{C}(\mathrm{g})$
$$ \begin{...

If the half life of a first order reaction is 6.93 minutes then the time required for completion of $99 \%$ of the reaction will be $\_\_\_\_$ minutes.
(Given $: \log 2=0.3010$ )

First order gas phase reaction
\(\mathrm{A} \rightarrow \mathrm{~B}+\mathrm{C}\)
$p_t=$ initial pressure of gas $\mathrm{A}, p_t=$ total pressure of the reaction mixture at time $t$
Expression of rate constant ( $k$ ) is

\(\text {Identify the incorrect statements. }\)

Choose the correct answer from the options given below:

\(\text {Benzyl isocyanide can be obtained from }\)

Choose the correct answer from the options given below :

The correct statements about metal carbonyls are
A. The metal-carbon bonds in metal carbonyls possess both $\sigma$ and $\pi$ character.
B. Due to synergic bonding interactions between metal and CO ligand, the metal-carbon bond becomes weak...

Given below are two statements:
Statement I: Each electron in $\mathrm{e}_{\mathrm{g}}$ orbitals destabilizes the orbitals by $+0.6 \Delta_{\mathrm{o}}$ and each electron in the $t_{2 g}$ orbitals stabilizes the orbitals by $-0.4 \Delta_0$ ...

Which of the following is NOT a physical or chemical characteristics of interstitial compounds?

For the following Friedel Craft's alkylation reaction, which of the statements are correct?

A. Major product is n-propyl benzene.
B. iso-propyl carbocation intermediate is also generated.
C. Multiple substitution is inevitable.
D. Introduc...

$\mathrm{M}_3 \mathrm{~A}_2$ is a sparingly soluble salt of molar mass $y \mathrm{~g} \mathrm{~mol}^{-1}$ and solubility $x \mathrm{~g} \mathrm{~L}^{-1}$. The ratio of the molar concentration of the anion $\left(\mathrm{A}^{3-}\right)$ to t...

Given below are two statements :
Statement I : Sodium dichromate and potassium dichromate are classified as primary standards in titrimetric analysis.
Statement II : Phenolphthalein is a weak base, therefore it dissociates in acidic medium....

Arrange the following resultant mixtures in increasing order of their pH values
A. $10 \mathrm{~mL} 0.2 \mathrm{M} \mathrm{Ca}(\mathrm{OH})_2+25 \mathrm{~mL} 0.1 \mathrm{M} \mathrm{HCl}$
B. $10 \mathrm{~mL} 0.01 \mathrm{M} \mathrm{H}_2 \mat...

Correct statements from the following are:
A. Nitrogen in oxidation states from +1 to +4 disproportionates in acid medium.
B. Nitrogen has the ability to form $\mathrm{d} \pi$ - $\mathrm{p} \pi$ multiple bonds with itself and other elements...

Given below are two statements:
Statement I: The correct order of electronegativity of fluorine, oxygen and nitrogen is $\mathrm{F}>\mathrm{O}>\mathrm{N}$.
Statement II: The oxidation state of oxygen in $\mathrm{OF}_2$ is +2 and in $\mathrm...

In an estimation of sulphur by Carius method 0.2 g of the substance gave 0.6 g of $\mathrm{BaSO}_4$. The percentage of sulphur in the substance is $\_\_\_\_$%.
(Given molar mass in $\mathrm{g} \mathrm{mol}^{-1} \mathrm{~S}: 32, \mathrm{BaSO...

How many grams of residue is obtained by heating 2.76 g of silver carbonate?
(Given : Molar mass of $\mathrm{C}, \mathrm{O}$ and Ag are 12, 16 and $108 \mathrm{~g} \mathrm{~mol}^{-1}$ respectively)

What is the mole fraction of water in $10 \%$ by weight $(\mathrm{w} / \mathrm{w})$ of aqueous urea solution?
[Given: Molar mass of $\mathrm{H}, \mathrm{O}, \mathrm{C}$ and N are $1,16,12$ and $14 \mathrm{~g} \mathrm{~mol}^{-1}$ respectivel...

Identify the correct statements from the following :
A. Heisenberg uncertainty principle is applicable to electrons.
B. The size of $2 p_x$ orbital is less than the size of $3 p_x$ orbital.
C. The energy of 2 s orbital of H atom is equal to...

Arrange the following atomic orbitals of multi electron atoms in order of increasing energy.
A. $n=3, l=2, m=+1$
B. $n=4, l=0, m=0$
C. $n=6, l=1, m=0$
D. $n=5, l=1, m=+1$
E. $n=2, l=1, m=+1$
Choose the correct answer from the options given ...