JEE Main 2024 (Online) 8th April Morning Shift
Paper was held on
Mon, Apr 8, 2024 3:30 AM
Chemistry
Combustion of glucose $$(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6)$$ produces $$\mathrm{CO}_2$$ and water. The amount o
View Question Thiosulphate reacts differently with iodine and bromine in the reactions given below:
$$\begin{aligned}
& 2 \mathrm{~S}_
View Question Give below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: The st
View Question Iron (III) catalyses the reaction between iodide and persulphate ions, in which
A. $$\mathrm{Fe}^{3+}$$ oxidises the iod
View Question Which of the following are aromatic?
View Question Among the following halogens
$$\mathrm{F}_2, \mathrm{Cl}_2, \mathrm{Br}_2 \text { and } \mathrm{I}_2$$
Which can undergo
View Question Which among the following compounds will undergo fastest SN2 reaction.
View Question Match List I with List II
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View Question Match List I with List II
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View Question Match List I with List II
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View Question Number of Complexes with even number of electrons in $$\mathrm{t_{2 g}}$$ orbitals is -
$$\left[\mathrm{Fe}\left(\mathrm
View Question For the given hypothetical reactions, the equilibrium constants are as follows :
$$\begin{aligned}
& \mathrm{X} \rightle
View Question An octahedral complex with the formula $$\mathrm{CoCl}_3 \cdot \mathrm{nNH}_3$$ upon reaction with excess of $$\mathrm{A
View Question In the given compound, the number of 2$$^\circ$$ carbon atom/s is ________.
View Question Identify the major products A and B respectively in the following set of reactions.
View Question Identify the product (P) in the following reaction:
View Question Given below are two statements :
In the light of the above statements, choose the most appropriate answer from the opti
View Question Given below are two statements:
Statement I: $$\mathrm{N}\left(\mathrm{CH}_3\right)_3$$ and $$\mathrm{P}\left(\mathrm{CH
View Question
The incorrect statement regarding the given structure is
View Question Match List I with List II
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View Question If $$279 \mathrm{~g}$$ of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of ani
View Question Consider the following reaction
$$\mathrm{A}+\mathrm{B} \rightarrow \mathrm{C}$$
The time taken for A to become $$1 / 4^
View Question Major product B of the following reaction has ________ $$\pi$$-bond.
View Question A hypothetical electromagnetic wave is show below.
The frequency of the wave is $$\mathrm{x} \times 10^{19} \mathrm{~Hz
View Question
Consider the figure provided.
$$1 \mathrm{~mol}$$ of an ideal gas is kept in a cylinder, fitted with a piston, at the p
View Question A solution containing $$10 \mathrm{~g}$$ of an electrolyte $$\mathrm{AB}_2$$ in $$100 \mathrm{~g}$$ of water boils at $$
View Question Number of molecules from the following which are exceptions to octet rule is _________.
$$\mathrm{CO}_2, \mathrm{NO}_2,
View Question The number of optical isomers in following compound is : __________.
View Question The 'spin only' magnetic moment value of $$\mathrm{MO}_4{ }^{2-}$$ is ________ BM. (Where M is a metal having least meta
View Question Number of amine compounds from the following giving solids which are soluble in $$\mathrm{NaOH}$$ upon reaction with Hin
View Question Mathematics
Let $$A=\left[\begin{array}{lll}2 & a & 0 \\ 1 & 3 & 1 \\ 0 & 5 & b\end{array}\right]$$. If $$A^3=4 A^2-A-21 I$$, where
View Question The value of $$k \in \mathbb{N}$$ for which the integral $$I_n=\int_0^1\left(1-x^k\right)^n d x, n \in \mathbb{N}$$, sat
View Question Let $$f(x)=4 \cos ^3 x+3 \sqrt{3} \cos ^2 x-10$$. The number of points of local maxima of $$f$$ in interval $$(0,2 \pi)$
View Question The set of all $$\alpha$$, for which the vectors $$\vec{a}=\alpha t \hat{i}+6 \hat{j}-3 \hat{k}$$ and $$\vec{b}=t \hat{i
View Question Let the circles $$C_1:(x-\alpha)^2+(y-\beta)^2=r_1^2$$ and $$C_2:(x-8)^2+\left(y-\frac{15}{2}\right)^2=r_2^2$$ touch eac
View Question Let $$f(x)$$ be a positive function such that the area bounded by $$y=f(x), y=0$$ from $$x=0$$ to $$x=a>0$$ is $$e^{-a}+
View Question Let $$H: \frac{-x^2}{a^2}+\frac{y^2}{b^2}=1$$ be the hyperbola, whose eccentricity is $$\sqrt{3}$$ and the length of the
View Question The number of critical points of the function $$f(x)=(x-2)^{2 / 3}(2 x+1)$$ is
View Question Let $$y=y(x)$$ be the solution of the differential equation $$(1+y^2) e^{\tan x} d x+\cos ^2 x(1+e^{2 \tan x}) d y=0, y(
View Question Let the sum of two positive integers be 24 . If the probability, that their product is not less than $$\frac{3}{4}$$ tim
View Question For the function $$f(x)=(\cos x)-x+1, x \in \mathbb{R}$$, between the following two statements
(S1) $$f(x)=0$$ for only
View Question Let $$P(x, y, z)$$ be a point in the first octant, whose projection in the $$x y$$-plane is the point $$Q$$. Let $$O P=\
View Question Let $$z$$ be a complex number such that $$|z+2|=1$$ and $$\operatorname{lm}\left(\frac{z+1}{z+2}\right)=\frac{1}{5}$$. T
View Question The sum of all the solutions of the equation $$(8)^{2 x}-16 \cdot(8)^x+48=0$$ is :
View Question The equations of two sides $$\mathrm{AB}$$ and $$\mathrm{AC}$$ of a triangle $$\mathrm{ABC}$$ are $$4 x+y=14$$ and $$3 x
View Question If $$\sin x=-\frac{3}{5}$$, where $$\pi
View Question Let $$[t]$$ be the greatest integer less than or equal to $$t$$. Let $$A$$ be the set of all prime factors of 2310 and $
View Question If the set $$R=\{(a, b): a+5 b=42, a, b \in \mathbb{N}\}$$ has $$m$$ elements and $$\sum_\limits{n=1}^m\left(1-i^{n !}\r
View Question If the shortest distance between the lines
$$\begin{array}{ll}
L_1: \vec{r}=(2+\lambda) \hat{i}+(1-3 \lambda) \hat{j}+(3
View Question Let $$I(x)=\int \frac{6}{\sin ^2 x(1-\cot x)^2} d x$$. If $$I(0)=3$$, then $$I\left(\frac{\pi}{12}\right)$$ is equal to
View Question If the orthocentre of the triangle formed by the lines $$2 x+3 y-1=0, x+2 y-1=0$$ and $$a x+b y-1=0$$, is the centroid o
View Question If the range of $$f(\theta)=\frac{\sin ^4 \theta+3 \cos ^2 \theta}{\sin ^4 \theta+\cos ^2 \theta}, \theta \in \mathbb{R}
View Question Let $$\vec{a}=9 \hat{i}-13 \hat{j}+25 \hat{k}, \vec{b}=3 \hat{i}+7 \hat{j}-13 \hat{k}$$ and $$\vec{c}=17 \hat{i}-2 \hat{
View Question Let the positive integers be written in the form :
If the $$k^{\text {th }}$$ row contains exactly $$k$$ numbers for ev
View Question The number of 3-digit numbers, formed using the digits 2, 3, 4, 5 and 7, when the repetition of digits is not allowed, a
View Question Three balls are drawn at random from a bag containing 5 blue and 4 yellow balls. Let the random variables $$X$$ and $$Y$
View Question Let $$\alpha=\sum_\limits{r=0}^n\left(4 r^2+2 r+1\right){ }^n C_r$$ and $$\beta=\left(\sum_\limits{r=0}^n \frac{{ }^n C_
View Question Let $$A=\left[\begin{array}{cc}2 & -1 \\ 1 & 1\end{array}\right]$$. If the sum of the diagonal elements of $$A^{13}$$ is
View Question Let the area of the region enclosed by the curve $$y=\min \{\sin x, \cos x\}$$ and the $$x$$ axis between $$x=-\pi$$ to
View Question The value of $$\lim _\limits{x \rightarrow 0} 2\left(\frac{1-\cos x \sqrt{\cos 2 x} \sqrt[3]{\cos 3 x} \ldots \ldots . \
View Question Physics
A stationary particle breaks into two parts of masses $$m_A$$ and $$m_B$$ which move with velocities $$v_A$$ and $$v_B$$
View Question Two charged conducting spheres of radii $$a$$ and $$b$$ are connected to each other by a conducting wire. The ratio of c
View Question Two planets $$A$$ and $$B$$ having masses $$m_1$$ and $$m_2$$ move around the sun in circular orbits of $$r_1$$ and $$r_
View Question Average force exerted on a non-reflecting surface at normal incidence is $$2.4 \times 10^{-4} \mathrm{~N}$$. If $$360 \m
View Question In an expression $$a \times 10^b$$ :
View Question A clock has $$75 \mathrm{~cm}, 60 \mathrm{~cm}$$ long second hand and minute hand respectively. In 30 minutes duration t
View Question The output $$\mathrm{Y}$$ of following circuit for given inputs is :
View Question A player caught a cricket ball of mass $$150 \mathrm{~g}$$ moving at a speed of $$20 \mathrm{~m} / \mathrm{s}$$. If the
View Question Three bodies A, B and C have equal kinetic energies and their masses are $$400 \mathrm{~g}, 1.2 \mathrm{~kg}$$ and $$1.6
View Question Young's modulus is determined by the equation given by $$\mathrm{Y}=49000 \frac{\mathrm{m}}{\mathrm{l}} \frac{\mathrm{dy
View Question Paramagnetic substances:
A. align themselves along the directions of external magnetic field.
B. attract strongly toward
View Question A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) are kept at room temperature $$(27^{\circ
View Question A LCR circuit is at resonance for a capacitor C, inductance L and resistance R. Now the value of resistance is halved ke
View Question The diameter of a sphere is measured using a vernier caliper whose 9 divisions of main scale are equal to 10 divisions o
View Question Critical angle of incidence for a pair of optical media is $$45^{\circ}$$. The refractive indices of first and second me
View Question A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is:
(Assume
View Question Correct Bernoulli's equation is (symbols have their usual meaning) :
View Question Binding energy of a certain nucleus is $$18 \times 10^8 \mathrm{~J}$$. How much is the difference between total mass of
View Question In the given circuit, the terminal potential difference of the cell is :
View Question Two different adiabatic paths for the same gas intersect two isothermal curves as shown in P-V diagram. The relation bet
View Question A closed and an open organ pipe have same lengths. If the ratio of frequencies of their seventh overtones is $$\left(\fr
View Question An electric field, $$\overrightarrow{\mathrm{E}}=\frac{2 \hat{i}+6 \hat{j}+8 \hat{k}}{\sqrt{6}}$$ passes through the sur
View Question Three vectors $$\overrightarrow{\mathrm{OP}}, \overrightarrow{\mathrm{OQ}}$$ and $$\overrightarrow{\mathrm{OR}}$$ each o
View Question A square loop PQRS having 10 turns, area $$3.6 \times 10^{-3} \mathrm{~m}^2$$ and resistance $$100 \Omega$$ is slowly an
View Question A liquid column of height $$0.04 \mathrm{~cm}$$ balances excess pressure of a soap bubble of certain radius. If density
View Question A uniform thin metal plate of mass $$10 \mathrm{~kg}$$ with dimensions is shown. The ratio of $$\mathrm{x}$$ and y coord
View Question Resistance of a wire at $$0^{\circ} \mathrm{C}, 100^{\circ} \mathrm{C}$$ and $$t^{\circ} \mathrm{C}$$ is found to be $$1
View Question A parallel beam of monochromatic light of wavelength $$600 \mathrm{~nm}$$ passes through single slit of $$0.4 \mathrm{~m
View Question An electron with kinetic energy $$5 \mathrm{~eV}$$ enters a region of uniform magnetic field of 3 $$\mu \mathrm{T}$$ per
View Question In an alpha particle scattering experiment distance of closest approach for the $$\alpha$$ particle is $$4.5 \times 10^{
View Question