JEE Main 2021 March 18 Shift 1 Question Paper PDF Download

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JEE Main 2021 B.E./B.Tech Question Paper - March 18, 2021- Forenoon Session was rated to be relatively easier than the previous papers. In the paper, 47 Questions were asked from class XII and 43 questions were asked from the class XI JEE Main syllabus. Surprisingly, Mathematics was the easiest section of the three, with direct formula-based questions being in the majority. Physics was second on the difficulty scale. Chemistry was on the top of the difficulty scale featuring complex equations, lengthy stoichiometric calculations, and questions on elemental properties. JEE Main 2022 aspirants can download the Question paper and solution pdf for March 18, 2021, Forenoon Session through the links given below:

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

JEE Main 2021 B.E./B.Tech March 18 Forenoon Session was conducted between 9.00 AM to 12.00 Noon, the topics with high weightage across the three sections were:

Subject	Topic	Marks in the Paper (including NATs)	Related Links
Physics	Capacitance, Alternating Current	16 (8 marks each)	JEE Main Mathematics Syllabus
	Thermodynamics	8
	Rectilinear motion and vectors, Gravitation, Error in measurement	24 (8 marks each)
	Modern Physics	8
Chemistry	S block elements	8	JEE Main Physics Syllabus
	Coordination Compounds	8
	Biomolecules	8
	Oxidation and Reduction	8
	Mole Concept	12
Mathematics	Coordinate Geometry	16	JEE Main Chemistry Syllabus
	Differential Calculus	12
	Integral Calculus	16
	Vectors	12
	Matrices and Determinants	12

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 Previous Year Question Paper with Answer Key PDFs

The links to JEE Main Previous Year Solved Question Papers have been provided 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

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JEE Main 2021 March 18 Shift 1 Question Paper with Solution PDF- Download Here

JEE Main B.E./B.Tech Question Paper- March 18, 2021 Forenoon

JEE Main 2021 B.E./B.Tech Question Paper March 18 (FN): Weightage of Topics

JEE Main 2021 Questions with Solutions

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

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