JEE Main 2021 B.Arch and B.Planning Question Paper with Answer Keys [September 9, 2021- Afternoon Session]

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JEE Main 2021 B.Arch and B.Planning Question Papers and Answer Keys are now available for downloading. JEE Main B.Arch and B.Planning are considered one of the most difficult competitive exams in India.

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JEE Main 2021 B.Arch And B.Planning Question Paper- September 9 (Afternoon)

JEE Main 2021 Question Paper	JEE Main 2021 Answer Key
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JEE Mains 2021 B.Arch Analysis

The exam comprises a total of 82 questions, carrying a total of 400 marks.Mathematics, General Aptitude, and Drawing related questions constituted the question paper of JEE Main 2021 B.Arch
30 questions were carried by the Mathematics section, while Aptitude and Drawings section carried 50 and 2 questions respectively
Candidates were supposed to choose only 25 questions in the Mathematics section of JEE Main 2021 B.Arch
Each question carried 4 marks in the Mathematics and B.Arch section. While the Drawings section carried 100 marks, distributed in two questions
4 marks will be awarded for each correct MCQ and Non-MCQ. 1 mark will be reduced for an incorrect Non-MCQ. No marks shall reduced for incorrect Non-MCQ

JEE Main 2021 B.Planning Analysis

JEE Main 2021 B.Planning was held in CBT (Computer Based Test) mode
JEE Main 2021 B.Planning Question Paper comprises a total of 100 questions, carrying a total of 400 marks. 3 hours were given to solve the 100 questions
The appeared questions were related to three sections i.e. Mathematics, Aptitude, and Planning based questions.
The Mathematics section carried 30 questions (only 25 questions were supposed to be attempted). The Aptitude section carried 50 MCQs (Multiple Choice Questions), while the remaining 25 questions were related to Planning
There were 20 MCQs and 10 Non-MCQs in the Mathematics section
Following the traditional marking scheme, 4 marks will be awarded for every correct question. 1 mark will be deducted for wrong MCQ. No marks will be deducted for wrong MCQs
No marks will be deducted for the left or unattempted questions

JEE Main 2021 Questions with Solutions

1	According to Bohr's atomic theory :- (A) Kinetic energy of electron is ∝Z²/n². (B) The product of velocity (v) of electron and principal quantum number (n), 'vn' ∝Z². (C) Frequency of revolution of electron in an orbit is ∝Z³/n³. (D) Coulombic force of attraction on the electron is ∝Z³/n⁴. Choose the most appropriate answer from the options given below:
2	Complete combustion of 1.80g of an oxygen containing compound (C_xH_yO₂) gave 2.64g of CO₂ and 1.08g of H₂O. The percentage of oxygen in the organic compound is:
3	Out of the following, which type of interaction is responsible for the stabilisation of ∝ -helix structure of proteins?
4	(A) HOCl + H₂O₂→ H₃O⁺+ Cl⁻+ O₂ (B) I₂+ H₂O₂+ 2OH⁻ → 2I⁻ + 2H₂O + O₂ Choose the correct option.
5	Which of the following equation depicts the oxidizing nature of H₂O₂?
6	Given below are two statements: Statement I : Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame. Statement II : Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame. In the light of the above statements, choose the most appropriate answer from the options given below.
7	Which of the following reaction/s will not give p− aminoazobenzene?
8	In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked $A , B , C , D$ and $E$. The transitions $A, B$ and $C$ respectively represent :
9	Four identical particles of equal masses $1 kg$ made to move along the circumference of a circle of radius $1 m$ under the action of their own mutual gravitational attraction. The speed of each particle will be :
10	If an emitter current is changed by $4 mA ,$ the collector current changes by $3.5 mA$. The value of $\beta$ will be
11	Match List -I with List -II
12	Each side of a box made of metal sheet in cubic shape is 'a' at room temperature 'T', the coefficient of linear expansion of the metal sheet is ' $\alpha^{\prime}$. The metal sheet is heated uniformly, by a small temperature $\Delta T ,$ so that its new temperature is $T +\Delta T$. Calculate the increase in the volume of the metal box.
13	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:

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JEE Main Previous Year Question Papers

Candidates can solve the question papers of the previous year to analyze their performance levels. To enhance the accuracy level, candidates are advised to solve JEE Main Question Papers daily. JEE Main B.Arch year wise and subject wise question paper links with answer key PDFs are provided below:

JEE Main 2021 Question Paper	JEE Main 2020 Question Paper	JEE Main 2019 Question Paper
JEE Main 2018 Question Paper	JEE Main B.Arch and B.Planning Question Papers	JEE Main Mock Test
JEE Main Physics Question Paper	JEE Main Maths Question Paper	JEE Main Chemistry Question Paper