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JEE Main 2021 Feb 24 Shift 2 Question Paper with Solution PDF- Download Here

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Content Curator updated | Updated On - Mar 7, 2023

JEE Main 2021 B.E./B.Tech Question Paper - February 24, 2021- Afternoon Session was considered to be of moderate difficulty level. Following the new JEE Main Exam Pattern for the year 2021, the paper had 90 questions in total, out of which candidates had to attempt 75 questions. Choices of attempting any 5 out of the 10 numerical answer type questions were given to the candidate in each section. Mathematics was the toughest section in the paper, followed by Physics. Chemistry was the easiest section of the paper consisting of direct formula and equation-based questions. Aspirants for JEE Main 2022 exam can download JEE Main question paper with answer key PDFs for the February 24, 2021 session, for practice.

JEE Main B.E./B.Tech Question Paper- February 24,2021 (Afternoon)

JEE Main 2021 Question Paper	JEE Main 2021 Answer Key
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JEE Main 2021 B.E./B.Tech Question Paper February 24 (AN): Paper Analysis

JEE Main 2021 B.E./B.Tech Paper February 24 Afternoon Session was conducted from 3.00 PM to 6.00 PM.

Each section had 10 Integer type Numerical Answer Questions, out of which the candidate needed to attempt any 5.
Mathematics had maximum questions on Integral Calculus, Differential Calculation, Coordination, and Algebra. Check JEE Main Mathematics Syllabus
For Physics, the dominant topics were Electrostatics, Mechanics, Optics & Modern Physics. Check JEE Main Physics Syllabus
Chemistry featured major questions from Chemical Thermodynamics, Chemical Kinetics, Coordination Compounds, and Polymers. Check JEE Main Chemistry Syllabus

Check: Detailed Paper Analysis of February 24 Afternoon Session at – JEE Main Question Paper Analysis

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 previous year's question papers is crucial for JEE Main aspirants. For the benefit of the students, Collegedunia has provide JEE Main Previous Year Question papers with answer keys, at the links below:

JEE Main 2020 Question Paper	JEE Main 2019 Question Paper	JEE Main 2018 Question Paper
JEE Main Physics Question Paper	JEE Main Maths Question Paper	JEE Main Chemistry Question Paper

Other B.Tech Exam Question Papers

WBJEE Question Papers	MHT-CET Question Papers	KCET Question Papers
KEAM Question Papers	AP EAPCET Question Papers	TS EAMCET Question Papers

*The article might have information for the previous academic years, please refer the official website of the exam.

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