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JEE Main 2021 (Online) 17th March Morning Shift

Exam Held on Wed Mar 17 2021 03:30:00 GMT+0000 (Coordinated Universal Time)
Click View All Questions to see questions one by one or you can choose a single question from below.

Chemistry

The absolute value of the electron gain enthalpy of halogens satisfies :
What is the spin-only magnetic moment value (BM) of a divalent metal ion with at...
With respect to drug-enzyme interaction, identify the wrong statement.
Hoffmann bromomide degradation of benzamide gives product A, which upon heating ...
<img src="https://imagex.cdn.examgoal.net/1kmk31dz9/f35da52f-2291-439f-9057-e3cd...
A colloidal system consisting of a gas dispersed in a solid is called a/an :
<img src="https://imagex.cdn.examgoal.net/1kmk32k02/cf0d68c0-8141-4054-8307-8ce9...
<img src="https://imagex.cdn.examgoal.net/1kmk34nhq/2597aec4-954c-4789-b2da-b61f...
Reducing smog is a mixture of :
The correct order of conductivity of ions in water is :
Which of the following compound CANNOT act as a Lewis base?
Given below are two statements :<br><br>Statement I : Potassium permanganate on ...
Mesityl oxide is a common name of :
The point of intersection and sudden increase in the slope, in the diagram given...
Which of the following is an aromatic compound?
A central atom in a molecule has two lone pairs of electrons and forms three sin...
Given below are two statements :<br><br>Statement I : Retardation factor (R<sub>...
Which of the following is correct structure of tyrosine?
Which of the following reaction is an example of ammonolysis?
The INCORRECT statement(s) about heavy water is (are)<br><br>(A) used as a moder...
A certain orbital has n = 4 and m<sub>L</sub> = $$-$$3. The number of radial nod...
15 mL of aqueous solution of Fe<sup>2+</sup> in acidic medium completely reacted...
The reaction of white phosphorus on boiling with alkali in inert atmosphere resu...
<img src="https://imagex.cdn.examgoal.net/1kmk3hsdg/53ab4d52-8045-49df-b0cb-cdda...
The pressure exerted by a non-reactive gaseous mixture of 6.4g of methane and 8....
For a certain first order reaction 32% of the reactant is left after 570s. The r...
0.01 moles of a weak acid HA (K<sub>a</sub> = 2.0 $$\times$$ 10<sup>$$-$$6</sup>...
The mole fraction of a solute in a 100 molal aqueous solution is ___________ $$\...
The standard enthalpies of formation of Al<sub>2</sub>O<sub>3</sub> and CaO are ...
The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour ...

Mathematics

In a triangle PQR, the co-ordinates of the points P and Q are ($$-$$2, 4) and (4...
The value of <br>$$\mathop {\lim }\limits_{x \to {0^ + }} {{{{\cos }^{ - 1}}(x -...
Which of the following statements is incorrect for the function g($$\alpha$$) fo...
Let $$\overrightarrow a $$ = 2$$\widehat i$$ $$-$$ 3$$\widehat j$$ + 4$$\widehat...
Which of the following is true for y(x) that satisfies the differential equation...
The sum of possible values of x for <br><br>tan<sup>$$-$$1</sup>(x + 1) + cot<su...
The line 2x $$-$$ y + 1 = 0 is a tangent to the circle at the point (2, 5) and t...
If the Boolean expression (p $$ \Rightarrow $$ q) $$ \Leftrightarrow $$ (q * ($$...
The equation of the plane which contains the y-axis and passes through the point...
The value of $$4 + {1 \over {5 + {1 \over {4 + {1 \over {5 + {1 \over {4 + ........
The inverse of $$y = {5^{\log x}}$$ is :
Two dies are rolled. If both dices have six faces numbered 1, 2, 3, 5, 7 and 11,...
If the fourth term in the expansion of $${(x + {x^{{{\log }_2}x}})^7}$$ is 4480,...
The system of equations kx + y + z = 1, x + ky + z = k and x + y + zk = k<sup>2<...
Choose the incorrect statement about the two circles whose equations are given b...
In a school, there are three types of games to be played. Some of the students p...
If cot<sup>$$-$$1</sup>($$\alpha$$) = cot<sup>$$-$$1</sup> 2 + cot<sup>$$-$$1</s...
If $$A = \left( {\matrix{ 0 &amp; {\sin \alpha } \cr {\sin \alpha } &amp...
Team 'A' consists of 7 boys and n girls and Team 'B' has 4 boys and 6 girls. If ...
The area of the triangle with vertices A(z), B(iz) and C(z + iz) is :
If (2021)<sup>3762</sup> is divided by 17, then the remainder is __________.
Let there be three independent events E<sub>1</sub>, E<sub>2</sub> and E<sub>3</...
The maximum value of z in the following equation z = 6xy + y<sup>2</sup>, where ...
If the equation of the plane passing through the line of intersection of the pla...
If $$A = \left[ {\matrix{ 2 &amp; 3 \cr 0 &amp; { - 1} \cr } } \righ...
If [ . ] represents the greatest integer function, then the value of <br><br><br...
If $$f(x) = \sin \left( {{{\cos }^{ - 1}}\left( {{{1 - {2^{2x}}} \over {1 + {2^{...
If $$\overrightarrow a = \alpha \widehat i + \beta \widehat j + 3\widehat k$$,<...
If the function $$f(x) = {{\cos (\sin x) - \cos x} \over {{x^4}}}$$ is continuou...
The minimum distance between any two points P<sub>1</sub> and P<sub>2</sub> whil...

Physics

A boy is rolling a 0.5 kg ball on the frictionless floor with the speed of 20 ms...
A polyatomic ideal gas has 24 vibrational modes. What is the value of $$\gamma$$...
Two ideal polyatomic gases at temperatures T<sub>1</sub> and T<sub>2</sub> are m...
If an electron is moving in the n<sup>th</sup> orbit of the hydrogen atom, then ...
Two identical metal wires of thermal conductivities K<sub>1</sub> and K<sub>2</s...
A triangular plate is shown. A force $$\overrightarrow F $$ = 4$$\widehat i$$ $$...
When two soap bubbles of radii a and b (b &gt; a) coalesce, the radius of curvat...
A car accelerates from rest at a constant rate $$\alpha$$ for some time after wh...
A mass M hangs on a massless rod of length l which rotates at a constant angular...
A solenoid of 1000 turns per metre has a core with relative permeability 500. In...
The thickness at the centre of a plane convex lens is 3 mm and the diameter is 6...
A Carnot's engine working between 400 K and 800 K has a work output of 1200 J pe...
For what value of displacement the kinetic energy and potential energy of a simp...
An AC current is given by I = I<sub>1</sub> sin$$\omega$$t + I<sub>2</sub> cos$$...
A modern grand - prix racing car of mass m is travelling on a flat track in a ci...
The vernier scale used for measurement has a positive zero error of 0.2 mm. If w...
A current of 10A exists in a wire of cross-sectional area of 5 mm<sup>2</sup> wi...
The output of the given combination gates represents :<br><br><img src="https://...
Which level of the single ionized carbon has the same energy as the ground state...
An electron of mass m and a photon have same energy E. The ratio of wavelength o...
For VHF signal broadcasting, ___________ km<sup>2</sup> of maximum service area ...
The radius in kilometer to which the present radius of earth (R = 6400 km) to be...
The angular speed of truck wheel is increased from 900 rpm to 2460 rpm in 26 sec...
A parallel plate capacitor whose capacitance C is 14 pF is charged by a battery ...
The following bodies,<br><br>(1) a ring<br><br>(2) a disc<br><br>(3) a solid cyl...
Four identical rectangular plates with length, l = 2 cm and breadth, b = $${3 \o...
Consider two identical springs each of spring constant k and negligible mass com...
The equivalent resistance of series combination of two resistors is 's'. When th...
Two blocks (m = 0.5 kg and M = 4.5 kg) are arranged on a horizontal frictionless...
If 2.5 $$\times$$ 10<sup>$$-$$6</sup> N average force is exerted by a light wave...

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