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JEE Main 2021 March 18 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- March 18, 2021- Afternoon Session was moderately easy as per the coaching institutes. The distribution of class XII questions and Class XI questions was roughly equal, with 44 Questions asked from the class XI syllabus and 46 from the class XII JEE Main Syllabus. As usual, the Mathematics section was the toughest section of the paper followed by Chemistry and Physics. JEE Main 2022 aspirants can download the question paper PDF and Answer Key PDF for March 18, 2021, Afternoon session from the links provided below.

JEE Main B.E./B.Tech Question Paper- March 18, 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 March 18 (Afternoon Session): Weightage of Topics

JEE Main 2021 B.E./B.Tech Question Paper March 18 (Afternoon Session) was conducted between 3.00 PM to 6.00 PM. The high weighting topics for each section were as follows:

Subject	Topic	Marks in the Paper (including NATs)
Physics	Current Electricity, Electromagnetic Field	16 (8 marks each)
	Thermodynamics	12
	Rigid Body Dynamics, Gravitation, Error in measurement	16 (8 marks each)
	Electromagnetic Waves and Communication	8
	Wave Optics	8
	SHM Waves	8
Chemistry	Periodic Table and Periodicity in properties	8
	Alkyl Halide, Alcohol and Ether	8
	Amines	12
	Carbonyl Compounds	8
Mathematics	Binomial theorem	8
	Coordinate Geometry	12
	Integral Calculus	16
	Differential Calculus	20
	Trigonometry	16

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 $BrCl _{3}$

Quick Links:

JEE Main Mathematics Syllabus	JEE Main Physics Syllabus	JEE Main Chemistry Syllabus

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

Candidates should try and solve as many previous year question papers as possible to be able to do well in the upcoming exam. The links to JEE Main B.E/ B. Tech Question Paper with Answer Key PDFs are given 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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