JEE Main 2021 Feb 25 Shift 1 Question Paper PDF Download

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JEE Main 2021 B.E./B.Tech Question Paper - February 25, 2021- Forenoon Session was rated to be of an above moderate level of difficulty. This was mostly due to the high difficulty level of the Mathematics section. The Physics and Chemistry sections were rated moderate and easy respectively. JEE Main 2022 aspirants can download the question paper and the answer key for February 25, 2021 session from the links given below.

JEE Main B.E./B.Tech Question Paper- February 25,2021 (Forenoon)

JEE Main 2021 Question Paper	JEE Main 2021 Answer Key
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JEE Main 2021 B.E./B.Tech Question Paper February 25 (FN): Difficulty Level

JEE Main 2021 B.E./B.Tech February 25 Forenoon Session was conducted between 9.00 AM to 12.00 Noon and was reported as above moderate in terms of overall difficulty level.

Mathematics was the toughest section of the exam and contributed solely to the above-average difficulty level status of the paper.
High weightage was given to Integral Calculus, Vectors, and Matrices & Determinants in the Mathematics Section. Questions framed from these topics were mostly lengthy and difficult to solve. Check JEE Main Mathematics Syllabus
The Physics section was moderate in difficulty and the questions based on Electrodynamics & Mechanics were dominant in the paper. Check JEE Main Physics Syllabus
The Chemistry section was the easiest and the majority of questions were asked from Organic Chemistry and Physical Chemistry. Check JEE Main Chemistry Syllabus

JEE Main 2021 Questions with Solutions

1	A cube of side 'a' has point charges $+ Q$ located at each of its vertices except at the origin where the charge is $-Q$. The electric field at the centre of cube is:
2	If $Y, K$ and $\eta$ are the values of Young's modulus, bulk modulus and modulus of rigidity of any material respectively. Choose the correct relation for these parameters.
3	Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent capacities in the two cases will be:
4	An LCR circuit contains resistance of $110 \Omega$ and a supply of $220 V$ at $300 rad / s$ angular frequency. If only capacitance is removed from the circuit, current lags behind the voltage by $45^{\circ} .$ If on the other hand, only inductor is removed the current leads by $45^{\circ}$ with the applied voltage. The $rms$ current flowing in the circuit will be:
5	Calgon is used for water treatment. Which of the following statement is $NOT$ true about Calgon?
6	Statements about heavy water are given below A. Heavy water is used in exchange reactions for the study of reaction mechanisms B. Heavy water is prepared by exhaustive electrolysis of water C. Heavy water has higher boiling point than ordinary water D. Viscosity of $H _{2} O$ is greater than $D _{2} O$
7	Given below are two statements : Two photons having equal linear momenta have equal wavelengths. If the wavelength of photon is decreased, then the momentum and energy of a photon will also decrease. In the light of the above statements, choose the correct answer from the options given below.
8	If an emitter current is changed by $4 mA ,$ the collector current changes by $3.5 mA$. The value of $\beta$ will be
9	In Freundlich adsorption isotherm, slope of AB line is:
10	In the given figure, a mass $M$ is attached to a horizontal spring which is fixed on one side to a rigid support. The spring constant of the spring is $k$. The mass oscillates on a frictionless surface with time period $T$ and amplitude $A$. When the mass is in equilibrium position, as shown in the figure, another mass $m$ is gently fixed upon it. The new amplitude of oscillation will be:
11	The correct order of bond dissociation enthalpy of halogens is:
12	Which of the following are isostructural pairs? A. $SO _{4}^{2-}$ and $CrO _{4}^{2-}$ B. $SiCl _{4}$ and $TiCl _{4}$ C. $NH _{3}$ and $NO _{3}^{-}$ D. $BCl _{3}$ and $BrCl _{3}$ $BCl _{3}$ and $BrCl _{3}$

JEE Main B.E/ B. Tech Question Paper with Answer Key PDFs

Solving JEE Main Question Papers will help JEE Main 2022 candidates in improving their speed and accuracy level of answering the questions. One can get familiar with one’s weak and strong areas which will further help in the final preparations of the exam.

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JEE Main 2021 Feb 25 Shift 1 Question Paper with Solution PDF- Download Here

JEE Main B.E./B.Tech Question Paper- February 25,2021 (Forenoon)

JEE Main 2021 B.E./B.Tech Question Paper February 25 (FN): Difficulty Level

JEE Main 2021 Questions with Solutions

JEE Main B.E/ B. Tech Question Paper with Answer Key PDFs

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