JEE Main 2022 · 25 Jul 2022 · Shift 1

Q1.If momentum $[\mathrm{P}]$, area $[\mathrm{A}]$ and time $[\mathrm{T}]$ are taken as fundamental quantities, then the dimensional formula for coefficient of viscosity is :

Q2.Which of the following physical quantities have the same dimensions?

Q3.A person moved from A to B on a circular path as shown in figure. If the distance travelled by him is 60 m, then the magnitude of displacement would be : (Given $\cos 135^{\circ }=-0.7$)

Q4.A body of mass 0.5 kg travels on straight line path with velocity $\mathrm{v}=(3{\mathrm{x}}^2+4)\mathrm{m}/\mathrm{s}$. The net workdone by the force during its displacement from $\mathrm{x}=0$ to $\mathrm{x}=2\mathrm{m}$ is :

Q5.A solid cylinder and a solid sphere, having same mass M and radius R, roll down the same inclined plane from top without slipping. They start from rest. The ratio of velocity of the solid cylinder to that of the solid sphere, with which they reach the ground, will be :

Q6.Three identical particle A, B and C of mass 100 kg each are placed in a straight line with $\mathrm{AB}=\mathrm{BC}=13\mathrm{m}$. The gravitational force on a fourth particle P of the same mass is F, when placed at a distance 13 m from the particle B on the perpendicular bis …

Q7.A certain amount of gas of volume V at $27^{\circ }\mathrm{C}$ temperature and pressure $2\times 10^7{\mathrm{Nm}}^{-2}$ expands isothermally until its volume gets doubled. Later it expands adiabatically until its volume gets redoubled. The final pressure of the gas will be …

Q8.Following statements are given :
(1) The average kinetic energy of a gas molecule decreases when the temperature is reduced.
(2) The average kinetic energy of a gas molecule increases with increase in pressure at constant temperature.
(3) The average kinetic energy of a gas molec …

Q9.In figure (A), mass '2m' is fixed on mass 'm' which is attached to two springs of spring constant k. In figure (B), mass 'm' is attached to two spring of spring constant 'k' and '2k'. If mass 'm' in (A) and (B) are displaced by distance 'x' horizontally and then released, then ti …

Q10.A condenser of $2\mu \mathrm{F}$ capacitance is charged steadily from 0 to 5C. Which of the following graph represents correctly the variation of potential difference (V) across it's plates with respect to the charge (Q) on the condenser ?

Q11.Two charged particles, having same kinetic energy, are allowed to pass through a uniform magnetic field perpendicular to the direction of motion. If the ratio of radii of their circular paths is $6:5$ and their respective masses ratio is $9:4$. Then, the ratio of their char …

Q12.To increase the resonant frequency in series LCR circuit,

Q13.A small square loop of wire of side $l$ is placed inside a large square loop of wire $\mathrm{L}(\mathrm{L}\gg l)$. Both loops are coplanar and their centres coincide at point O as shown in figure. The mutual inductance of the system is :

Q14.The rms value of conduction current in a parallel plate capacitor is $6.9\mu \mathrm{A}$. The capacity of this capacitor, if it is connected to 230 V ac supply with an angular frequency of $600\mathrm{rad}/\mathrm{s}$, will be :

Q15.Which of the following statement is correct?

Q16.Time taken by light to travel in two different materials A and B of refractive indices ${\mu }_{\mathrm{A}}$ and ${\mu }_{\mathrm{B}}$ of same thickness is $t_1$ and $t_2$ respectively. If $t_2-t_1=5\times 10^{-10}s$ and the ratio of ${\mu }_A$ to ${\mu }_B$ is …

Q17.A metal exposed to light of wavelength 800 nm and emits photoelectrons with a certain kinetic energy. The maximum kinetic energy of photo-electron doubles when light of wavelength 500 nm is used. The work function of the metal is (Take hc $=1230\mathrm{eV}-\mathrm{nm}$).

Q18.The momentum of an electron revolving in ${\mathrm{n}}^{\text{th }}$ orbit is given by : (Symbols have their usual meanings)

Q19.The magnetic moment of an electron (e) revolving in an orbit around nucleus with an orbital angular momentum is given by :

Q20.In the circuit, the logical value of $\mathrm{A}=1$ or $\mathrm{B}=1$ when potential at A or B is 5 V and the logical value of $\mathrm{A}=0$ or $\mathrm{B}=0$ when potential at A or B is 0 V.

The truth table of the given circuit will be :

Q21.A car is moving with speed of $150\mathrm{km}/\mathrm{h}$ and after applying the brake it will move 27 m before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling ______ m distance.

Q22.Four forces are acting at a point P in equilibrium as shown in figure. The ratio of force ${\mathrm{F}}_1$ to ${\mathrm{F}}_2$ is $1:\mathrm{x}$ where $\mathrm{x}=$ ______.

Q23.A wire of length L and radius r is clamped rigidly at one end. When the other end of the wire is pulled by a force F, its length increases by 5 cm. Another wire of the same material of length 4L and radius 4r is pulled by a force 4F under same conditions. The increase in length o …

Q24.A unit scale is to be prepared whose length does not change with temperature and remains 20 cm, using a bimetallic strip made of brass and iron each of different length. The length of both components would change in such a way that difference between their lengths remains constan …

Q25.An observer is riding on a bicycle and moving towards a hill at $18{\mathrm{kmh}}^{-1}$. He hears a sound from a source at some distance behind him directly as well as after its reflection from the hill. If the original frequency of the sound as emitted by source is 640 Hz and vel …

Q26.The volume charge density of a sphere of radius 6 m is $2\mu \mathrm{C}{\mathrm{cm}}^{-3}$. The number of lines of force per unit surface area coming out from the surface of the sphere is $\_\_\_\_$ $\times 10^{10}{\mathrm{NC}}^{-1}$.
[Given : Permittivity of vacuum …

Q27.In the given figure, the value of ${\mathrm{V}}_0$ will be $\_\_\_\_$ V.

Q28.Eight copper wire of length $l$ and diameter d are joined in parallel to form a single composite conductor of resistance R . If a single copper wire of length $2l$ have the same resistance ( $R$ ) then its diameter will be $\_\_\_\_$ d.

Q29.The energy band gap of semiconducting material to produce violet (wavelength $=4000\mathring{A}$) LED is $\_\_\_\_$ eV . (Round off to the nearest integer).

Q30.The required height of a TV tower which can cover the population of 6.03 lakh is h . If the average population density is 100 per square km and the radius of earth is 6400 km , then the value of $h$ will be $\_\_\_\_$ m.

Q1.${\mathrm{SO}}_2{\mathrm{Cl}}_2$ on reaction with excess of water results into acidic mixture
${\mathrm{SO}}_2{\mathrm{Cl}}_2+2{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_2{\mathrm{SO}}_4+2\mathrm{HCl}$
16 moles of NaOH is required for the complete neutralisation …

Q2.Which of the following sets of quantum numbers is not allowed?

Q3.The depression in freezing point observed for a formic acid solution of concentration $0.5\mathrm{mL}{\mathrm{L}}^{-1}$ is $0.0405^{\circ }\mathrm{C}$. Density of formic acid is $1.05\mathrm{g}{\mathrm{mL}}^{-1}$. The Van't Hoff factor of the formic acid solution is nea …

Q4.20 mL of $0.1\mathrm{M}{\mathrm{NH}}_4\mathrm{OH}$ is mixed with 40 mL of 0.05 M HCl . The pH of the mixture is nearest to:
(Given: ${\mathrm{K}}_{\mathrm{b}}\left({\mathrm{NH}}_4\mathrm{OH}\right)=1\times 10^{-5},\log 2=0.30$, $\log 3=0.48,\log 5=0.69,\log 7=0.84$, …

Q5.The IUPAC nomenclature of an element with electronic configuration $[\mathrm{Rn}]5{\mathrm{f}}^{14}6{\mathrm{d}}^{1}7{\mathrm{s}}^2$ is :

Q6.The compound(s) that is(are) removed as slag during the extraction of copper is :
(1) CaO
(2) FeO
(3) ${\mathrm{Al}}_2{\mathrm{O}}_3$
(4) ZnO
(5) NiO

Choose the correct answer from the options given below :

Q7.The reaction of ${\mathrm{H}}_2{\mathrm{O}}_2$ with potassium permanganate in acidic medium leads to the formation of mainly:

Q8.Choose the correct order of density of the alkali metals :

Q9.The geometry around boron in the product ' B ' formed from the following reaction is
${\mathrm{BF}}_3+\mathrm{NaH}\stackrel{450\mathrm{K}}{\to }\mathrm{A}+\mathrm{NaF}$
$\mathrm{A}+{\mathrm{NMe}}_3\to \mathrm{B}$

Q10.The interhalogen compound formed from the reaction of bromine with excess of fluorine is a :

Q11.The photochemical smog does not generally contain :

Q12.A compound ' A ' on reaction with ' X ' and ' Y produces the same major product but different by product ' a ' and ' b '. Oxidation of ' a ' gives a substance produced by ants.

' X ' and ' Y ' respectively are :

Q13.Most stable product of the following reaction is:

Q14.Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?

Q15.An organic compound 'A' on reaction with NH₃ followed by heating gives compound B. Which on further strong heating gives compound C (C₈H₅NO₂). Compound C on sequential reaction with ethanolic KOH, alkyl chloride and hydrolysis with alkali gives a primary amine. The compound A is:

Q16.Melamine polymer is formed by the condensation of:

Q17.During the denaturation of proteins, which of these structures will remain intact?

Q18.Drugs used to bind to receptors, inhibiting its natural function and blocking a message are called:

Q19.Given below are two statements:

Statement I: On heating with KHSO₄, glycerol is dehydrated and acrolein is formed.

Statement II: Acrolein has fruity odour and can be used to test glycerol's presence.

Choose the correct option.

Q20.Among the following species
N₂, N₂⁺, N₂⁻, N₂²⁻, O₂, O₂⁺, O₂⁻, O₂²⁻
the number of species showing diamagnetism is

Q21.The enthalpy of combustion of propane, graphite and dihydrogen at 298 K are: -2220.0 kJ mol⁻¹, -393.5 kJ mol⁻¹ and -285.8 kJ mol⁻¹ respectively. The magnitude enthalpy of formation of propane (C₃H₈) is........ kJ mol⁻¹. (Nearest integer)

Q22.The pressure of a moist gas at 27°C is 4 atm. The volume of the container is doubled at the same temperature. The new pressure of the moist gas is .... × 10⁻¹ atm. (Nearest integer)
(Given: The vapour pressure of water at 27°C is 0.4 atm)

Q23.The cell potential for Zn|Zn²⁺(aq)||Snˣ⁺|Sn is 0.801 V at 298 K. The reaction quotient for the above reaction is 10⁻². The number of electrons involved in the given electrochemical cell reaction is......
(Given E°_Zn²⁺|Zn = -0.763 V, E°_Snˣ⁺|Sn = +0.008 V and (2.303RT)/F = 0.06 V …

Q24.The half life for the decomposition of gaseous compound A is 240 s when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half life was found to be 4.0 min. The order of the reaction is...... (Nearest integer)

Q25.Consider the following metal complexes:
${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$
${\left[\mathrm{CoCl}{\left({\mathrm{NH}}_3\right)}_5\right]}^{2+}$
${\left[\mathrm{Co}(\mathrm{CN}{)}_6\right]}^{3-}$ …

Q26.Among ${\mathrm{Co}}^{3+}$, ${\mathrm{Ti}}^{2+}$, ${\mathrm{V}}^{2+}$ and ${\mathrm{Cr}}^{2+}$ ions, one if used as a reagent cannot liberate ${\mathrm{H}}_2$ from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is _____ B.M. (Nearest integer)

Q27.While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from 0.25 g of the compound neutralized 2.5 mL of $2\mathrm{M}$ ${\mathrm{H}}_2{\mathrm{SO}}_4$. The percentage of nitrogen present in organic compound is _____.

Q28.The number of ${\mathrm{sp}}^3$ hybridised carbons in an acyclic neutral compound with molecular formula ${\mathrm{C}}_4{\mathrm{H}}_5\mathrm{N}$ is:

Q29.In the given reaction

(Where Et is $-{\mathrm{C}}_2{\mathrm{H}}_5$)

The number of chiral carbon/s in product A is

Q1.The total number of functions, f : $\{1,2,3,4\}\to \{1,2,3,4,5,6\}$ such that $\mathrm{f}(1)+\mathrm{f}(2)=\mathrm{f}(3)$, is equal to :

Q2.If $\alpha ,\beta ,\gamma ,\delta$ are the roots of the equation $x^4+x^3+x^2+x+1=0$, then
${\alpha }^{2021}+{\beta }^{2021}+{\gamma }^{2021}+{\delta }^{2021}$ is equal to :

Q3.The number of $\theta \in (0,4\pi )$ for which the system of linear equations
$3(\sin 3\theta )\mathrm{x}-\mathrm{y}+\mathrm{z}=2$
$3(\cos 2\theta )x+4y+3z=3$
$6x+7y+7z=9$
has no solution is :

Q4.If ${\lim }_{n\to \infty }\left(\sqrt{n^2-n-1}+n\alpha +\beta \right)=0$ then $8(\alpha +\beta )$ is equal to :

Q5.If the absolute maximum value of the function $\mathrm{f}(\mathrm{x})=\left({\mathrm{x}}^2-2\mathrm{x}+7\right){\mathrm{e}}^{\left(4{\mathrm{x}}^3-12{\mathrm{x}}^2-180\mathrm{x}+31\right)}$ in the interval [-3, $0]$ is $\mathrm{f}(\alpha )$, then :

Q6.The curve $\mathrm{y}(\mathrm{x})={\mathrm{ax}}^3+{\mathrm{bx}}^2+\mathrm{cx}+5$ touches the x -axis at the point $\mathrm{P}(-2,0)$ and cuts the y -axis at the point Q , where ${\mathrm{y}}^{\prime }$ is equal to 3 . Then the local maximum value of $\mathrm{y}(\mathrm{x})$ …

Q7.The area of the region given by
$\mathrm{A}=\left\{(\mathrm{x},\mathrm{y}):{\mathrm{x}}^2\le \mathrm{y}\le \min \{\mathrm{x}+2,4-3\mathrm{x}\}\right\}$ is :

Q8.For any real number x , let $[\mathrm{x}]$ denote the largest integer less than equal to x . Let f be a real valued function defined on the interval $[-10,10]$ by …

Q9.The slope of the tangent to a curve $C:y=y(x)$ at any point $[x,y)$ on it is $\frac{2e^{2x}-6e^{-x}+9}{2+9e^{-2x}}$. If $C$ passes through the points $\left(0,\frac{1}{2}+\frac{\pi }{2\sqrt{2}}\right)$ and …

Q10.The general solution of the differential equation $\left(x-y^2\right)dx+y\left(5x+y^2\right)dy=0$ is :

Q11.A line, with the slope greater than one, passes through the point $\mathrm{A}(4,3)$ and intersects the line $\mathrm{x}-y-2=0$ at the point $B$. If the length of the line segment AB is $\frac{\sqrt{29}}{3}$, then B also lies on the line :

Q12.Let the locus of the centre $(\alpha ,\beta ),\beta >0$, of the circle which touches the circle $x^2+(y-1{)}^2=1$ externally and also touches the x-axis be L. Then the area bounded by L and the line $y=4$ is:

Q13.Let P be the plane containing the straight line $\frac{x-3}{9}=\frac{y+4}{-1}=\frac{z-7}{-5}$ and perpendicular to the plane containing the straight lines $\frac{x}{2}=\frac{y}{3}=\frac{z}{5}$ and $\frac{x}{3}=\frac{y}{7}=\frac{z}{8}$. If d is the distance of P from the point …

Q14.Let ABC be a triangle such that $\overrightarrow{BC}=\vec{a}$, $\overrightarrow{CA}=\vec{b}$, $\overrightarrow{AB}=\vec{c}$, $|\vec{a}|=6\sqrt{2}$, $|\vec{b}|=2\sqrt{3}$ and $\vec{b}\cdot \vec{c}=12$.
Consider the statements:
(S1): …

Q15.If the sum and the product of mean and variance of a binomial distribution are 24 and 128 respectively, then the probability of one or two successes is:

Q16.If the numbers appeared on the two throws of a fair six faced die are $\alpha$ and $\beta$, then the probability that $x^2+\alpha x+\beta >0$, for all $x\in \mathbb{R}$, is:

Q17.The number of solutions of $|\cos x|=\sin x$, such that $-4\pi \le x\le 4\pi$ is:

Q18.A tower PQ stands on a horizontal ground with base Q on the ground. The point R divides the tower in two parts such that $QR=15$ m. If from a point A on the ground the angle of elevation of R is $60^{\circ }$ and the part PR of the tower subtends an angle of $15^{\circ }$ at A, the …

Q19.Which of the following statements is a tautology?

Q20.Let $A=\left[\begin{array}{ccc}2& -1& -1\\ 1& 0& -1\\ 1& -1& 0\end{array}\right]$ and $B=A-I$. If $\omega =\frac{\sqrt{3}i-1}{2}$, then the number of elements in the set $\{n\in \{1,2,\dots ,100\}:A^n+(\omega B{)}^n=A+B\}$ is equal to ____.

Q21.The letters of the word 'MANKIND' are written in all possible orders and arranged in serial order as in an English dictionary. Then the serial number of the word 'MANKIND' is ____.

Q22.If the maximum value of the term independent of t in the expansion of ${\left(t^2{x}^{\frac{1}{5}}+\frac{(1-x{)}^{\frac{1}{10}}}{t}\right)}^{15}$, $x\ge 0$, is K, then 8K is equal to ____.

Q23.Let a, b be two non-zero real numbers. If p and r are the roots of the equation $x^2-8ax+2a=0$ and q and s are the roots of the equation $x^2+12bx+6b=0$, such that $\frac{1}{p},\frac{1}{q},\frac{1}{r},\frac{1}{s}$ are in A.P., then $a^{-1}-b^{-1}$ is equal to ____.

Q24.Let $a_1=b_1=1,a_n=a_{n-1}+2$ and $b_n=a_n+b_{n-1}$ for every natural number $n\ge 2$. Then ${\sum }_{n=1}^{15}{a}_n\cdot b_n$ is equal to ______.

Q25.Let $f(x)=\{\begin{array}{l}\left|4x^2-8x+5\right|,\text{ if }8x^2-6x+1\ge 0\\ \left[4x^2-8x+5\right],\text{ if }8x^2-6x+1<0\end{array}$,
where $[\alpha ]$ denotes the greatest integer less than or equal to $\alpha$. Then the number of points i …

Q26.If ${\lim }_{n\to \infty }\frac{(n+1{)}^{k-1}}{n^{k+1}}[(nk+1)+(nk+2)+\dots +(nk+n)]=33\cdot {\lim }_{n\to \infty }\frac{1}{n^{k+1}}\cdot \left[1^k+2^k+3^k+\dots +n^k\right]$, then the integral value of k is equal to ______.

Q27.Let the equation of two diameters of a circle $x^2+y^2-2x+2fy+1=0$ be $2px-y=1$ and $2x+py=4p$. Then the slope $m\in (0,\infty )$ of the tangent to the hyperbola $3x^2-y^2=3$ passing through the centre of the circle is equal to ______.

Q28.The sum of diameters of the circles that touch (i) the parabola $75x^2=64(5y-3)$ at the point $\left(\frac{8}{5},\frac{6}{5}\right)$ and (ii) the y-axis, is equal to ______.

Q29.The line of shortest distance between the lines $\frac{x-2}{0}=\frac{y-1}{1}=\frac{z}{1}$ and $\frac{x-3}{2}=\frac{y-5}{2}=\frac{z-1}{1}$ makes an angle of ${\sin }^{-1}\left(\sqrt{\frac{2}{27}}\right)$ with the plane $P:ax-y-z=0,(a>0)$. If the image of the point $(1,1,-5)$ in t …