JEE Main 2022 (Online) 28th July Morning Shift

Paper was held on
Thu, Jul 28, 2022 3:30 AM

## Chemistry

Identify the incorrect statement from the following.

View Question Which of the following relation is not correct?

View Question Match List - I with List - II.
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style

View Question Match List - I with List - II.
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style

View Question In which of the following pairs, electron gain enthalpies of constituent elements are nearly the same or identical?
(A)

View Question Which of the reaction is suitable for concentrating ore by leaching process ?

View Question The metal salts formed during softening of hardwater using Clark's method are :

View Question Which of the following statement is incorrect?

View Question Match List - I with List - II, match the gas evolved during each reaction.
.tg {border-collapse:collapse;border-spacin

View Question Which of the following has least tendency to liberate $$\mathrm{H}_{2}$$ from mineral acids?

View Question Given below are two statements:
Statement I : In polluted water values of both dissolved oxygen and $$\mathrm{BOD}$$ are

View Question Match List - I with List - II.
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style

View Question Choose the correct option for the following reactions.

View Question Among the following marked proton of which compound shows lowest $$\mathrm{pK}_{\mathrm{a}}$$ value?

View Question Identify the major products A and B for the below given reaction sequence.

View Question Identify the correct statement for the below given transformation.

View Question Terylene polymer is obtained by condensation of :

View Question For the below given cyclic hemiacetal (X), the correct pyranose structure is :

View Question Statements about Enzyme Inhibitor Drugs are given below :
(A) There are Competitive and Non-competitive inhibitor drugs.

View Question For kinetic study of the reaction of iodide ion with $$\mathrm{H}_{2} \mathrm{O}_{2}$$ at room temperature :
(A) Always

View Question In the given reaction,
$$X+Y+3 Z \leftrightarrows X YZ_{3}$$
if one mole of each of $$X$$ and $$Y$$ with $$0.05 \mathrm{

View Question An element M crystallises in a body centred cubic unit cell with a cell edge of $$300 \,\mathrm{pm}$$. The density of th

View Question The number of paramagnetic species among the following is ___________.
$$\mathrm{B}_{2}, \mathrm{Li}_{2}, \mathrm{C}_{2}

View Question $$150 \mathrm{~g}$$ of acetic acid was contaminated with $$10.2 \mathrm{~g}$$ ascorbic acid $$\left(\mathrm{C}_{6} \math

View Question $$\mathrm{K}_{\mathrm{a}}$$ for butyric acid $$\left(\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{COOH}\right)$$ is $$2 \times

View Question For the given first order reaction
$$\mathrm{A} \rightarrow \mathrm{B}$$
the half life of the reaction is $$0.3010 \math

View Question The number of interhalogens from the following having square pyramidal structure is :
$$\mathrm{ClF}_{3}, \mathrm{IF}_{7

View Question The disproportionation of $$\mathrm{MnO}_{4}^{2-}$$ in acidic medium resulted in the formation of two manganese compound

View Question Total number of relatively more stable isomer(s) possible for octahedral complex $$\left[\mathrm{Cu}(\mathrm{en})_{2}(\m

View Question On complete combustion of $$0.492 \mathrm{~g}$$ of an organic compound containing $$\mathrm{C}, \mathrm{H}$$ and $$\math

View Question ## Mathematics

Let the solution curve of the differential equation $$x \mathrm{~d} y=\left(\sqrt{x^{2}+y^{2}}+y\right) \mathrm{d} x, x>

View Question Considering only the principal values of the inverse trigonometric functions, the domain of the function $$f(x)=\cos ^{-

View Question Let the vectors $$\vec{a}=(1+t) \hat{i}+(1-t) \hat{j}+\hat{k}, \vec{b}=(1-t) \hat{i}+(1+t) \hat{j}+2 \hat{k}$$ and $$\ve

View Question Considering the principal values of the inverse trigonometric functions, the sum of all the solutions of the equation $$

View Question Let the operations $$*, \odot \in\{\wedge, \vee\}$$. If $$(\mathrm{p} * \mathrm{q}) \odot(\mathrm{p}\, \odot \sim \mathr

View Question Let a vector $$\vec{a}$$ has magnitude 9. Let a vector $$\vec{b}$$ be such that for every $$(x, y) \in \mathbf{R} \times

View Question For $$\mathrm{t} \in(0,2 \pi)$$, if $$\mathrm{ABC}$$ is an equilateral triangle with vertices $$\mathrm{A}(\sin t,-\cos

View Question For $$\alpha \in \mathbf{N}$$, consider a relation $$\mathrm{R}$$ on $$\mathbf{N}$$ given by $$\mathrm{R}=\{(x, y): 3 x+

View Question Out of $$60 \%$$ female and $$40 \%$$ male candidates appearing in an exam, $$60 \%$$ candidates qualify it. The number

View Question If $$y=y(x), x \in(0, \pi / 2)$$ be the solution curve of the differential equation $$\left(\sin ^{2} 2 x\right) \frac{d

View Question If the tangents drawn at the points $$\mathrm{P}$$ and $$\mathrm{Q}$$ on the parabola $$y^{2}=2 x-3$$ intersect at the p

View Question Let $$C$$ be the centre of the circle $$x^{2}+y^{2}-x+2 y=\frac{11}{4}$$ and $$P$$ be a point on the circle. A line pass

View Question The remainder when $$7^{2022}+3^{2022}$$ is divided by 5 is :

View Question Let the matrix $$A=\left[\begin{array}{lll}0 & 1 & 0 \\ 0 & 0 & 1 \\ 1 & 0 & 0\end{array}\right]$$ and the matrix $$B_{0

View Question Let $$S_{1}=\left\{z_{1} \in \mathbf{C}:\left|z_{1}-3\right|=\frac{1}{2}\right\}$$ and $$S_{2}=\left\{z_{2} \in \mathbf{

View Question The foot of the perpendicular from a point on the circle $$x^{2}+y^{2}=1, z=0$$ to the plane $$2 x+3 y+z=6$$ lies on whi

View Question If the minimum value of $$f(x)=\frac{5 x^{2}}{2}+\frac{\alpha}{x^{5}}, x>0$$, is 14 , then the value of $$\alpha$$ is eq

View Question Let $$\alpha, \beta$$ and $$\gamma$$ be three positive real numbers. Let $$f(x)=\alpha x^{5}+\beta x^{3}+\gamma x, x \in

View Question Consider the sequence $$a_{1}, a_{2}, a_{3}, \ldots$$ such that $$a_{1}=1, a_{2}=2$$ and $$a_{n+2}=\frac{2}{a_{n+1}}+a_{

View Question The minimum value of the twice differentiable function $$f(x)=\int\limits_{0}^{x} \mathrm{e}^{x-\mathrm{t}} f^{\prime}(\

View Question Let $$S$$ be the set of all passwords which are six to eight characters long, where each character is either an alphabet

View Question Let $$\mathrm{P}(-2,-1,1)$$ and $$\mathrm{Q}\left(\frac{56}{17}, \frac{43}{17}, \frac{111}{17}\right)$$ be the vertices

View Question Let $$f:[0,1] \rightarrow \mathbf{R}$$ be a twice differentiable function in $$(0,1)$$ such that $$f(0)=3$$ and $$f(1)=5

View Question If $$\int\limits_{0}^{\sqrt{3}} \frac{15 x^{3}}{\sqrt{1+x^{2}+\sqrt{\left(1+x^{2}\right)^{3}}}} \mathrm{~d} x=\alpha \sq

View Question Let $$A=\left[\begin{array}{cc}1 & -1 \\ 2 & \alpha\end{array}\right]$$ and $$B=\left[\begin{array}{cc}\beta & 1 \\ 1 &

View Question For $$\mathrm{p}, \mathrm{q} \in \mathbf{R}$$, consider the real valued function $$f(x)=(x-\mathrm{p})^{2}-\mathrm{q}, x

View Question For the hyperbola $$\mathrm{H}: x^{2}-y^{2}=1$$ and the ellipse $$\mathrm{E}: \frac{x^{2}}{\mathrm{a}^{2}}+\frac{y^{2}}{

View Question Let $$x_{1}, x_{2}, x_{3}, \ldots, x_{20}$$ be in geometric progression with $$x_{1}=3$$ and the common ratio $$\frac{1}

View Question $$\lim\limits_{x \rightarrow 0}\left(\frac{(x+2 \cos x)^{3}+2(x+2 \cos x)^{2}+3 \sin (x+2 \cos x)}{(x+2)^{3}+2(x+2)^{2}+

View Question The sum of all real values of $$x$$ for which $$\frac{3 x^{2}-9 x+17}{x^{2}+3 x+10}=\frac{5 x^{2}-7 x+19}{3 x^{2}+5 x+12

View Question ## Physics

The dimensions of $$\left(\frac{\mathrm{B}^{2}}{\mu_{0}}\right)$$ will be :
(if $$\mu_{0}$$ : permeability of free space

View Question A NCC parade is going at a uniform speed of $$9 \mathrm{~km} / \mathrm{h}$$ under a mango tree on which a monkey is sitt

View Question In two different experiments, an object of mass $$5 \mathrm{~kg}$$ moving with a speed of $$25 \mathrm{~ms}^{-1}$$ hits

View Question A balloon has mass of $$10 \mathrm{~g}$$ in air. The air escapes from the balloon at a uniform rate with velocity $$4.5

View Question If the radius of earth shrinks by $$2 \%$$ while its mass remains same. The acceleration due to gravity on the earth's s

View Question The force required to stretch a wire of cross-section $$1 \mathrm{~cm}^{2}$$ to double its length will be : (Given Yong'

View Question A Carnot engine has efficiency of $$50 \%$$. If the temperature of sink is reduced by $$40^{\circ} \mathrm{C}$$, its eff

View Question Given below are two statements :
Statement I : The average momentum of a molecule in a sample of an ideal gas depends on

View Question In the wave equation
$$
y=0.5 \sin \frac{2 \pi}{\lambda}(400 \mathrm{t}-x) \,\mathrm{m}
$$
the velocity of the wave will

View Question Two capacitors, each having capacitance $$40 \,\mu \mathrm{F}$$ are connected in series. The space between one of the ca

View Question A wire of resistance R1 is drawn out so that its length is increased by twice of its original length. The ratio of new r

View Question The current sensitivity of a galvanometer can be increased by :
(A) decreasing the number of turns
(B) increasing the ma

View Question As shown in the figure, a metallic rod of linear density $$0.45 \mathrm{~kg} \mathrm{~m}^{-1}$$ is lying horizontally on

View Question The equation of current in a purely inductive circuit is $$5 \sin \left(49\, \pi t-30^{\circ}\right)$$. If the inductanc

View Question As shown in the figure, after passing through the medium 1 . The speed of light $$v_{2}$$ in medium 2 will be :
$$\left(

View Question In normal adujstment, for a refracting telescope, the distance between objective and eye piece is $$30 \mathrm{~cm}$$. T

View Question The equation $$\lambda=\frac{1.227}{x} \mathrm{~nm}$$ can be used to find the de-Brogli wavelength of an electron. In th

View Question The half life period of a radioactive substance is 60 days. The time taken for $$\frac{7}{8}$$th of its original mass to

View Question Identify the solar cell characteristics from the following options :

View Question In the case of amplitude modulation to avoid distortion the modulation index $$(\mu)$$ should be :

View Question If the projection of $$2 \hat{i}+4 \hat{j}-2 \hat{k}$$ on $$\hat{i}+2 \hat{j}+\alpha \hat{k}$$ is zero. Then, the value

View Question A freshly prepared radioactive source of half life 2 hours 30 minutes emits radiation which is 64 times the permissible

View Question In a Young's double slit experiment, a laser light of 560 nm produces an interference pattern with consecutive bright fr

View Question The frequencies at which the current amplitude in an LCR series circuit becomes $$\frac{1}{\sqrt{2}}$$ times its maximum

View Question As shown in the figure, a potentiometer wire of resistance $$20 \,\Omega$$ and length $$300 \mathrm{~cm}$$ is connected

View Question Two electric dipoles of dipole moments $$1.2 \times 10^{-30} \,\mathrm{Cm}$$ and $$2.4 \times 10^{-30} \,\mathrm{Cm}$$ a

View Question The frequency of echo will be __________ Hz if the train blowing a whistle of frequency 320 Hz is moving with a velocity

View Question The diameter of an air bubble which was initially $$2 \mathrm{~mm}$$, rises steadily through a solution of density $$175

View Question A block of mass '$$\mathrm{m}$$' (as shown in figure) moving with kinetic energy E compresses a spring through a distanc

View Question Four identical discs each of mass '$$\mathrm{M}$$' and diameter '$$\mathrm{a}$$' are arranged in a small plane as shown

View Question