List of top Questions asked in JEE Main- 2026

Which of the following amino acid will give violet coloured complex with neutral ferric chloride solution?

The incorrect statement from the following with respect to carbohydrates is:

Which statements are True?
A. In Hoffmann bromamide degradation, 4 moles of NaOH and 2 moles of Br₂ are consumed per mole of an amide.
B. Hoffmann bromamide reaction is not given by alkyl amides.
C. Primary amines can be synthesized by Hoffmann bromamide degradation.
D. Secondary amide on reaction with $Br_2$ and NaOH will give secondary amine.
E. The by-products of Hoffmann degradation are $Na_2CO_3$, $NaBr$ and $H_2O$.

Consider the following reaction.
[The structure of a piperidine derivative reacting with $NaBH_4/MeOH$, $NaOH(aq)$, \(\Delta\), $H_3O_+$]
The major product (P) formed is:}

Given below are two statements:
Statement I: Due to increase in van der Waals forces, the order of boiling points is $CH₃CH₂CH₂I>CH₃CH₂I>CH₃I$.
Statement II:

n-Butane on monochlorination under photochemical condition gives an optically active compound "P". "P" on further chlorination gives dichloro compounds. The number of dichloro compounds obtained (ignore stereoisomers) is:

The total number of aromatic compounds/species from the following is ________.
[Six structures shown]}

The major product of which of the following reaction is not obtained by rearrangement reaction?}

Given below are two statements:
Statement I: Vapours of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation.
Statement II: The vapours rising up in the fractionating column become richer in high boiling component of the mixture.

Given below are two statements for catalytic properties of transition metals.
Statement I: First row transition metals which act as catalyst utilise their 3d electrons only for formation of bonds between reactant molecules and atoms on the surface of catalyst.
Statement II: There is increase in the concentration of reactants on the surface of catalyst which strengthens the bonds in reacting molecules.

Let \(A = \begin{bmatrix} 1 & 2 \\ 2 & 3 \\ 0 & 0 \\ 4 & 5 \end{bmatrix}\) and \(B = \begin{bmatrix} 1 & 0 & 0 & 0 \\ -5\alpha & 0 & 0 & 4\alpha \\ -2\alpha & 0 & 0 & 0 \end{bmatrix} + \operatorname{adj}(A)\). If \(\det(B) = 66\), then \(\det(\operatorname{adj}(A))\) equals:

Let a line \(L_1\) pass through the origin and be perpendicular to the lines \(L_2: \vec{r} = (3 + t)\hat{i} + (2t - 1)\hat{j} + (2t + 4)\hat{k}\) and \(L_3: \vec{r} = (3 + 2s)\hat{i} + (3 + 2s)\hat{j} + (2 + s)\hat{k}\). If \((a, b, c)\), \(a \in \mathbb{Z}\), is the point on \(L_3\) at a distance of \(\sqrt{17}\) from the point of intersection of \(L_1\) and \(L_2\), then \((a + b + c)^2\) is equal to ________.

Let the foot of perpendicular from the point \((\lambda, 2, 3)\) on the line \(\frac{x-4}{1} = \frac{y-9}{2} = \frac{z-5}{1}\) be the point \((1, \mu, 2)\). Then the distance between the lines \(\frac{x-1}{2} = \frac{y-2}{3} = \frac{z+4}{6}\) and \(\frac{x-\lambda}{2} = \frac{y-\mu}{3} = \frac{z+5}{6}\) is equal to:

Given below are two statements:
Statement I: The number of pairs among [Ti⁴⁺, V²⁺], [V²⁺, Mn²⁺], [Mn²⁺, Fe³⁺] and [V²⁺, Cr²⁺] in which both ions are coloured is 3.
Statement II: The number of pairs among [La³⁺, Yb²⁺], [Lu³⁺, Ce⁴⁺] and [Ac³⁺, Lr³⁺] ions in which both are diamagnetic is 3.

Find the correct statements related to group 15 hydrides:
A. Reducing nature increases from NH₃ to BiH₃
B. Tendency to donate lone pair of electrons decreases from NH₃ to BiH₃
C. The stability of hydrides decreases from NH₃ to BiH₃
D. HEH bond angle decreases from NH₃ to SbH₃

Match List-I with List-II.

Given below are two statements:
Statement I: When \(E_a = 12.6\) kcal/mol, the room temperature rate constant is doubled by a 10 °C increase in temperature (298 K to 308 K).
Statement II: For a first order reactions \(A \to B\), [the graph of rate vs [A] is a straight line through origin].

Given at 298 K:
\(E^\circ_{\rm Fe^{2+}/Fe} = X\) Volt
\(E^\circ_{\rm Fe^{3+}/Fe} = Y\) Volt
The \(E^\circ_{\rm Fe^{3+}/Fe^{2+}}\) in Volt at 298 K is given by:

Consider the following reactions in which all the reactants and products are present in gaseous state:
\(2xy \rightleftharpoons x_2 + y_2\) \(K_1 = 2.5 \times 10^5\)
\(xy + \frac{1}{2}z_2 \rightleftharpoons xyz\) \(K_2 = 5 \times 10^{-3}\)
The value of \(K_3\) for the equilibrium \(\frac{1}{2}x_2 + \frac{1}{2}y_2 + \frac{1}{2}z_2 \rightleftharpoons xyz\) is:

Which of the following statements are not correct?
A. For water, magnitude of \(K_b\) is more than the magnitude of \(K_f\).
B. The elevation in boiling point of water when a non-volatile solute is added to it is larger in magnitude than its depression in freezing point.
C. Osmotic pressure measurement is preferred over any other colligative property to determine molar mass of proteins and polymers.
D. The dimerised form of benzoic acid in benzene is C₆H₅-C-OH ⋯ O=C-C₆H₅

Bromine trifluoride autoionizes to form BrF$_2^+$ and BrF$_4^-$. The shapes of the cation and anion are respectively ________, and ________

Given below are two statements:}
Statement I:} In 30% (w/w) solution of methanol in CCl$_4$ (at $T$ K), the mole fraction of CCl$_4$ is equal to 0.33.
Statement II:} Mixture of methanol and CCl$_4$ shows positive deviation from Raoult's law.

Match List-I with List-II.

Two masses of 3.4 kg and 2.5 kg are accelerated from an initial speed of 5 m/s and 12 m/s, respectively. The distances traversed by the masses in the 5th second are 104 m and 129 m, respectively. The ratio of their momenta after 10 s is \(\frac{x}{8}\). The value of \(x\) is ________.

The stored charge in the capacitor in steady state of the following circuit is ________ µC.