JEE Main 25 Jul 2021 Question Paper with Answer Key (Out) – By NTA for shift 1, 2

JEE Main 25 Jul 2021 Question Paper with Answer Key – NTA has released the answer key at jeemain.nta.nic.in for April/July 2021 Session. Candidates can check it all below. The JEE Main 25 Jul official question paper with answer key is available now. Various coaching institutes like Resonance, Allen, Gradeup release these questions and answers. The answer key given here is memory-based and is prepared according to the inputs of the candidates. Check more details on JEE Main 25 Jul Question Paper with Answer Key from this page.

JEE Main 25 Jul 2021 Question Paper with Answer Key

Direct Link To Check: Click here to check the JEE Main 25 Jul 2021 Question Paper with Answer Key (Official).

JEE Main 25 Jul 2021 Shift 1 Answer Key

Ques. In a reaction where A+B gives 2C. All of them start from 1M concentration and Kc value is 100. Find [A] equilibrium.
Ans. 2.5 M

Ques. In the combustion of butane, 72 grams of water is given out. How much butane is formed.
Ans. 46.4

Ques. Which of the following leaches out from the extraction of Al from bauxite.
Ans. SiO2

Ques. Which of the following do not exist?
Ans. SiCl62−

Ques. Which is water-soluble protein?
Ans. Albumin

Ques. Which of the following complexes show attraction or compulsion on external magnetic field?
Ans. Fe(H2O)6]3+

Ques. Which is of the following is not used in dry cleaning?
Ans. H2O2

Ques.
Ans. 10

Ques. Identify the Polymer 

Ans. Novolac

Ques. A nucleus of mass 4m disintegrates into two daughter nuclei of mass m and 3m. Find the ratio of their respective De Broglie wavelength?
Ans. 1:1

Ques. Two wires of equal dimensions and Young’s modulus Y1 and Y 2 are connected end to end. What is the equivalent Young’s modulus for the combination.
Ans.

Ques.

Ans. 0.2 MHz

Ques. Temperature Vs time graphs are given below for 2 substances. Compare the heat capacity.

Ans.

Ques. Find the ratio of the impulse transferred to the wall by a ball incident normally and the at 45° with normal.
Ans. √2:1

Ques. A bulb rated 200 W, 100V is connected to 200V supply. What external resistance should be connected in series to have the same power as earlier?
Ans. 50Ω

Ques.

Ans. 2m/s

Steps to Estimate Marks Using JEE Main 25 July 2021 Question Paper with Answer Key

In order to to calculate the scores using JEE Main 25 July 2021 question paper with answer key. Check the steps given below to calculate the scores.

1st step: First of all, download the answer key of the particular shift.

2nd step: Now, cross-check the answers from the question paper.

3rd step: If the answer is correct, add 04 marks (For both MCQ and NVT). If the answer is incorrect then, follow the marking scheme given below.

  • Deduct 01 marks for each incorrect answer (Only for MCQs)
  • There is no negative marking for Numerical Value type questions

JEE Main 2021 Official Answer Key

NTA releases JEE Main answer key at jeemain.nta.nic.in. The official answer key is released at the candidate’s login. Check the steps given below to download the answer key.

1st step: Go to the official website, jeemain.nta.nic.in.

2nd step: Next, click on the ‘view question paper and challenge answer key’.

3rd step: Then, login by entering the application number and date of birth OR application number and password.

4th step: Next, click on the ‘sign in’ button.

5th step: Now, click on the answer key and download its pdf.

JEE Main 25 Jul 2021 Question Paper

JEE Main 25 Jul 2021 question paper is released along with the answer key only. These questions are memory-based and are prepared according to the analysis of the candidates of the exam. The coaching institutes that publish the answer key are Resonance, Allen, Aakash.

The candidates can use the question paper along with the answer key to have a proper estimate about the scores.

JEE Main 2021 Exam Pattern

JEE Main is a computer-based test (except drawing test in B.Arch). In the test, there are multiple-choice and numerical value type questions. The duration of the test is 3 hours.

Distribution of questions

For B.E / B.Tech

SubjectSection ASection B (Any 5 questions to be attempted out of 10) Marks
Mathematics2010100
Physics2010100
Chemistry 2010100

For B.Arch

SubjectSection ASection B (5 questions to be attempted) Marks
Mathematics (Part I)2010100
Aptitude Test (Part II)50200
Drawing Test (Part III)02100

For B.Plan

SubjectSection ASection BMarks
Mathematics (Part I)2010100
Aptitude Test (Part II)50200
Planning Based Objective Type MCQs25100

JEE Main Previous Year Cut Offs

To appear for JEE Advanced, the candidates require the minimum marks. The cut-off scores are released category-wise. Check previous year scores given below.

Category202020192018201720162015
Open 90.376533589.75488497481100105
GEN – EWS70.243551878.2174869
OBC NCL72.888796974.316655745497070
SC 50.176024554.012815529325250
ST39.069610144.334517224274844
PwD0.06185240.11371730-3501

JEE Main 2021 Result

The candidates can check JEE Main 2021 result from jeemain.nta.nic.in. To check the result, candidates have to enter the application number and date of birth.

  • The result is compiled on the basis of the final answer key.
  • The raw marks obtained in different sessions / shifts will be converted to NTA score.
  • The All India Rank will be compiled and declared after the conduct of all JEE Main sessions.
  • There is no provision of re-checking / re-evaluation of the score.

FAQs on JEE Main 2021 25 Jul Question Paper with Answer Key

Ques. Can I challenge the unofficial JEE Main 2021 answer key?

Ans. No, you cannot challenge the unofficial JEE Main 2021 answer key.

Ques. When will JEE Main official answer key will be released?

Ans. JEE Main official answer key is released on July 29 for the July session.

Ques. Will my marks be deducted for the wrong answers?

Ans. Yes, 01 marks are deducted for each wrong MCQ answer.

Ques. Do I need any login credentials to download the unofficial answer key?

Ans. No, the unofficial answer keys are released in pdf format. So, no login credentials are required.

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