NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...

## JEE Main 2021 (Online) 25th July Morning Shift

Exam Held on Sun Jul 25 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

<img src="https://imagex.cdn.examgoal.net/1krwgpa25/24ec0f88-c45e-40e1-91fd-07e1...
Which one of the following species responds to an external magnetic field?
<img src="https://imagex.cdn.examgoal.net/1krwgw4fo/cd108800-8c24-4391-8c81-f87b...
Sodium stearate CH<sub>3</sub>(CH<sub>2</sub>)<sub>16</sub>COO<sup>$$-$$</sup>Na...
The water soluble protein is :
At 298.2 K the relationship between enthalpy of bond dissociation (in kJ mol<sup...
<picture><source media="(max-width: 320px)" srcset="https://imagex.cdn.examgoal....
<img src="https://imagex.cdn.examgoal.net/1krwh5zc8/0003a497-b477-4e6c-b402-acc0...
Given below are two statements, one is labelled as Assertion (A) and other is la...
For the following graphs,<br><br><picture><source media="(max-width: 320px)" src...
Which one of the products of the following reactions does not react with Hinsber...
The ionic radii of K<sup>+</sup>, Na<sup>+</sup>, Al<sup>3+</sup> and Mg<sup>2+<...
Which one of the following compounds of Group-14 elements is not known?
Which one among the following resonating structures is not correct?
Given below are two statements :<br><br>Statement I : None of the alkaline earth...
The correct order of following 3d metal oxides, according to their oxidation num...
Which one of the following chemical agent is not being used for dry-cleaning of ...
Which one of the following compounds will liberate CO<sub>2</sub>, when treated ...
In the leaching of alumina from bauxite, the ore expected to leach out in the pr...
An organic compound 'A' C<sub>4</sub>H<sub>8</sub> on treatment with KMnO<sub>4<...
The number of sigma bonds in <br><br><img src="https://imagex.cdn.examgoal.net/1...
Three moles of AgCl get precipitated when one mole of an octahedral co-ordinatio...
A source of monochromatic radiation of wavelength 400 nm provides 1000 J of ener...
CO<sub>2</sub> gas is bubbled through water during a soft drink manufacturing pr...
For the reaction<br><br>A + B $$\rightleftharpoons$$ 2C<br><br>the value of equi...
Consider the cell at 25$$^\circ$$C<br><br>Zn | Zn<sup>2+</sup> (aq), (1M) || Fe<...
At 298 K, the enthalpy of fusion of a solid (X) is 2.8 kJ mol<sup>$$-$$1</sup> a...
A home owner uses 4.00 $$\times$$ 10<sup>3</sup> m<sup>3</sup> of methane (CH<su...
When 10 mL of an aqueous solution of Fe<sup>2+</sup> ions was titrated in the pr...
Consider the complete combustion of butane, the amount of butane utilized to pro...

## Mathematics

A spherical gas balloon of radius 16 meter subtends an angle 60$$^\circ$$ at the...
Let $$f(x) = 3{\sin ^4}x + 10{\sin ^3}x + 6{\sin ^2}x - 3$$, $$x \in \left[ { - ... Let S<sub>n</sub> be the sum of the first n terms of an arithmetic progression. ... The locus of the centroid of the triangle formed by any point P on the hyperbola... Let the vectors<br><br>$$(2 + a + b)\widehat i + (a + 2b + c)\widehat j - (b + c...
Let f : R $$\to$$ R be defined as<br><br>$$f(x) = \left\{ {\matrix{ {{{\lambd... The value of the definite integral$$\int\limits_{\pi /24}^{5\pi /24} {{{dx} \ov...
If b is very small as compared to the value of a, so that the cube and other hig...
Let y = y(x) be the solution of the differential equation $${{dy} \over {dx}} = ... The Boolean expression$$(p \Rightarrow q) \wedge (q \Rightarrow \sim p)$$is e... The area (in sq. units) of the region, given by the set$$\{ (x,y) \in R \times ...
The sum of all values of x in [0, 2$$\pi$$], for which sin x + sin 2x + sin 3x +...
Let g : N $$\to$$ N be defined as<br><br>g(3n + 1) = 3n + 2,<br><br>g(3n + 2) = ...
Let $$f:[0,\infty ) \to [0,\infty )$$ be defined as $$f(x) = \int_0^x {[y]dy}$$...
The values of a and b, for which the system of equations <br><br>2x + 3y + 6z = ...
Let 9 distinct balls be distributed among 4 boxes, B<sub>1</sub>, B<sub>2</sub>,...
Let a parabola b be such that its vertex and focus lie on the positive x-axis at...
The number of real roots of the equation $${e^{6x}} - {e^{4x}} - 2{e^{3x}} - 12{... Let an ellipse$$E:{{{x^2}} \over {{a^2}}} + {{{y^2}} \over {{b^2}}} = 1$$,$${a...
Let the foot of perpendicular from a point P(1, 2, $$-$$1) to the straight line ...
Let y = y(x) be solution of the following differential equation $${e^y}{{dy} \ov... If the value of<br><br>$${\left( {1 + {2 \over 3} + {6 \over {{3^2}}} + {{10} \...
Consider the following frequency distribution :<br><br><style type="text/css"> ....
Let $$\overrightarrow p = 2\widehat i + 3\widehat j + \widehat k$$ and $$\overr... The ratio of the coefficient of the middle term in the expansion of (1 + x)<sup>... Let$$M = \left\{ {A = \left( {\matrix{ a &amp; b \cr c &amp; d \cr ...
There are 5 students in class 10, 6 students in class 11 and 8 students in class...
If $$\alpha$$, $$\beta$$ are roots of the equation $${x^2} + 5(\sqrt 2 )x + 10 =... The term independent of 'x' in the expansion of <br>$${\left( {{{x + 1} \over {{...
Let $$S = \left\{ {n \in N\left| {{{\left( {\matrix{ 0 &amp; i \cr 1 &am... ## Physics For a gas C<sub>P</sub>$$-$$C<sub>V</sub> = R in a state P and C<sub>P</sub> ... Given below are two statements : one is labelled as Assertion A and the other is... What should be the order of arrangement of de-Broglie wavelength of electron ($$...
Identify the logic operation carried out.<br><br><img src="https://imagex.cdn.ex...
A particle of mass 4M at rest disintegrates into two particles of mass M and 3M ...
Some nuclei of a radioactive material are undergoing radioactive decay. The time...
Match List - I with List - II<br><br><picture><source media="(max-width: 320px)"...
A parallel plate capacitor with plate area 'A' and distance of separation 'd' is...
A monoatomic ideal gas, initially at temperature T<sub>1</sub> is enclosed in a ...
A ray of laser of a wavelength 630 nm is incident at an angle of 30$$^\circ$$ at...
Two series of same length and radius are joined end to end and loaded. The Young...
The half-life of $${}^{198}Au$$ is 3 days. If atomic weight of $${}^{198}Au$$ is...
Two billiard balls of equal mass 30g strike a rigid wall with same speed of 108 ...
In the Young's double slit experiment, the distance between the slits varies in ...
Two different metal bodies A and B of equal mass are heated at a uniform rate un...
A linearly polarized electromagnetic wave in vacuum is <br><br>$$E = 3.1\cos \le... In the given figure, there is a circuit of potentiometer of length AB = 10 m. Th... In amplitude modulation, the message signal<br><br>V<sub>m</sub>(t) = 10 sin (2... Water droplets are coming from an open tap at a particular rate. The spacing bet... The minimum and maximum distances of a planet revolving around the sun are x<sub... A body of mass 2 kg moving with a speed of 4 m/s. makes an elastic collision wit... Student A and student B used two screw gauges of equal pitch and 100 equal circu... An inductor of 10 mH is connected to a 20V battery through a resistor of 10 k$$\...
A circular conducting coil of radius 1 m is being heated by the change of magnet...
In the reported figure, two bodies A and B of masses 200 g and 800 g are attache...
The value of aluminium susceptibility is 2.2 $$\times$$ 10<sup>$$-$$5</sup>. The...
A particle of mass 1 mg and charge q is lying at the mid-point of two stationary...
An electric bulb rated as 200 W at 100 V is used in a circuit having 200 V suppl...
A pendulum bob has a speed of 3 m/s at its lowest position. The pendulum is 50 c...
A particle of mass 'm' is moving in time 't' on a trajectory given by<br><br>\...

### Joint Entrance Examination

JEE Main JEE Advanced WB JEE

### Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

NEET

Class 12