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2021 JEE PYQ

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
Statement-I:
To get a steady dc output from the pulsating voltage received from a full wave rectifier we can connect a capacitor across the output...
JEE Main Physics Medium
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Q JEE MAIN 2021
The gas 'A' is having very low reactivity reaches to stratosphere. It is non–toxic and non–flammable but dissociated by UV—radiations in stratosphere. The intermediates formed...
JEE Main Chemistry Easy
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Q JEE MAIN 2021
A square shaped wire with resistance of each side $3 \omega$ is bent to form a complete circle. The resistance between two diametrically opposite points...
JEE Main Physics Easy
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Q JEE MAIN 2021
The value of $2 \sin \left(\frac{\pi}{8}\right) \sin \left(\frac{2 \pi}{8}\right) \sin \left(\frac{3 \pi}{8}\right) \sin \left(\frac{5 \pi}{8}\right) \sin \left(\frac{6 \pi}{8}\right) \sin \left(\frac{7 \pi}{8}\right)$ is :
JEE Main Mathematics Easy
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Q JEE MAIN_2021_
consider the above reaction, and choose the correct statement :
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
Which one of the following phenols does not give colour when condensed with phthalic anhydride in presence of conc.$\mathrm{H}_2 \mathrm{SO}_4$
JEE Main Chemistry Easy
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Q JEE MAIN 2021
A resistor dissipates 192 J of energy in 1 s when a current of 4A is passed through it. Now, when the current is doubled,...
JEE Main Physics Easy
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Q JEE MAIN 2021
Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloidal species. It is :
JEE Main Chemistry Hard
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Q JEE MAIN 2021
For a body executing S.H.M. :
(a) Potential energy is always equal to its K.E.
(b) Average potential and kinetic energy over any given...
JEE Main Physics Easy
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Q JEE MAIN 2021
The locus of the mid points of the chords of the hyperbola $x^2-y^2=4$, which touch the parabola $y^2=8 x$, is :
JEE Main Mathematics Medium
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