JEE Main Answer Key 2021 Final Out - Download Answer Key PDFs

JEE Main Answer Key 2021 - NTA has released the final answer key of JEE Main 2021 on March 7. NTA JEE Main answer key 2021 is available on the official website jeemain.nta.nic.in. The provisional JEE Main official answer key 2021 was released by NTA on March 1, 2021. Candidates were able to challenge the JEE Mains 2021 answer key by paying a fee of Rs. 200/- per question. The date to challenge the official NTA JEE Main answer key 2021 was from March 1 to 3, 2021. Candidates can download the JEE Main official answer key through candidates' login. official JEE Main answer key is released in PDF format. Candidates can calculate their probable score by using the JEE Mains 2021 answer key. The unofficial JEE Main 2021 answer key is released by Careers360, Resonance and Reliable Kota. The answer key of JEE Main 2021 contains correct answers to questions asked in JEE Main 2021. NTA is releasing separate IIT JEE answer key 2021 for all sessions. Along with answer keys, JEE Main 2021 response sheet is also released by NTA on the official website. To know more about the downloading and objection process of JEE Main answer key 2021, refer to the article below.
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JEE Main Feb 2021 Answer Key (Official)

How to download JEE Main 2021 Answer Key?- Step-wise process

JEE Main Answer Key 2021 (Feb 23, 24, 25, 26) by Coaching Institutes

JEE Main Answer Key 2021 Release Date

The answer key of JEE Main 2021 is released by NTA 2-3 days after the exam conduction. NTA has released the JEE Main 2021 answer key date. Below we have provided the NTA JEE answer key dates-

JEE Main 2021 answer key dates

How to download NTA JEE Main Answer key 2021?

Candidates may find below the series of steps to be followed for downloading the JEE Main 2021 answer key:

1. Visit the official website of NTA at jeemain.nta.nic.in

2. Select the link to the answer key of JEE Mains 2021 in this window

3. Now, candidates will be required to enter their JEE Main application number and date of birth

4. Click on submit and the JEE Mains 2021 answer key will appear on the screen

5. Download the pdf file for more convenience.

After downloading the answer key of JEE Main 2021, candidates are able to compare their responses and thus, calculate their probable score. They are also allowed to raise objections against responses provided in the NTA JEE Main answer key 2021 that they think are wrong while providing the proof in support of their contention. The objections so raised shall be considered by the experts and then changes may be made in the JEE Main final answer key.

Memory Based JEE Main Questions - February 24 Shift 1

1. If there is degradation of vegetation, then what effect is caused in the environment from gas released?
2. Calculate the ionization energy of all third period elements.
3. An astronaut has left the international space station to test a new space scooter. His partner measures the fall velocity changes which take place in 10s interval. Find the magnitude and direction of average acceleration at the beginning of 10 sec interval, the astronaut is moving towards the x-axis in 10m/sec and at the end is 10 sec. He is moving towards the -ve axis at 5m/sec.

4. What will be the energy if you increase lambda by haIf

5. A dice is rolled n times. If the probability of getting even number and odd number is equal then find n.

6. Two capacitors are given. Find the series and parallel resistant and their ratio.

7. Find the work done by the cyclic process.

8. What are the major components of gun metal? Ans. Copper 88%

9. What does anaerobic respiration cause? Ans. Global warming

10. Which vitamin deficiency causes sterility in males? Ans. Vitamin E

11. What is the coordination no. of b.c.c? Ans. 8

JEE Main 2021 Answer Key for Paper 2

Memory based questions and JEE Main paper 2 answer key for exam held on February 23.

JEE Main 2021 Mathematics Question

• If A+B+C = 180 degrees. Then, find tanA+tanb+tanC =? - Answer: tanA tabB tanC
• If Z1 and Z2 is a unimodular complex number that satisfy Z1 2+Z2 2=4. Then (Z1+Z1) 2+ (Z2+Z2) 2 is equal to? Answer: 12
• Evaluate (elogx + sinx )cosxdx  Find the equation of the normal to the curve x2 = 4y which passes through the point (1,2). Answer: x+y = 3
• The DE representing the family of curves y2 (2c + x2021 ) where c is the +ve parameter is of? Answer: Order 1
• Given x = cy+bx, y = az+cx, z = bx+ay where x, y and z are not all zero, then a2 + b2 + c2 + 2ab = Answer: 1
• The minimum number of times a fair coin needs to be tossed so that the probability of getting at least two heads is at least 0.96 is ____ Answer: 8
• If f:(1, ∞) —> (2,∞) is given by f(n) =n+1, the f-1 (n) equals? Answer: x+√x2-4 / 2

JEE Main 2021 Questions- General Aptitude Question

1. Who was the designer of the world trade center? - Answer: Minoru Yamasaki, Emery Roth
2. A person writes letters to 6 friends and addresses a corresponding envelope. The number of ways in which 5 letters can be placed in the wrong envelope is?
3. Who is the write of god of small things?
4. What is the full form of NHAI? - Answer: National Highways Authority of India.
5. What is the new name of Planning commission? - Answer: NITI Ayog.
6. When was special economic zone launched?
7. Who designed IIM Ahmedabad? - Answer: Louis Kahn and B.V. Doshi
8. What is the size of A2 sheet in mm?
9. Who was the first Indian architect to win Pritzker Prize?

JEE Main Paper 2 Drawing Section

Questions related to Coronavirus vaccination and the booths were asked in drawing section.

How to challenge JEE Main 2021 Answer Key?

After downloading the provisional NTA JEE Main answer key 2021, candidates will be provided with a certain period to raise objections against the answers mentioned in the answer key wherever they think that the answer is incorrect. In order to raise objections, candidates will have to note the question ID and answer provided through the answer key of JEE Main 2021 along with the correct answer and apply through the link provided to candidates along with payment of processing fee of Rs 200 for each question. For a challenge, they will have to follow the steps given below:

1. Visit the official NTA website at jeemain.nta.nic.in

2. Click on the link to ‘challenges regarding answer key’

3. Candidates will now be required to log in using their application number and password

4. The JEE Main answer key shall contain the question ID as well as the ID with a correct option for both papers 1 and 2

5. In case there seems some error, candidates can challenge the question by selecting one or more IDs

6. Now click on ‘Save your claim’ and click on next

7. Question ID so challenged shall appear on the screen

8. Candidates will now be required the necessary documents in support of their claim

9. They will have to upload the same in pdf form and click on the ‘Choose file’ button shown on the screen.

10. The next step requires candidates to pay the processing fee of Rs 200 for each question thus objected against. Payment can be done through credit card/ debit card/ net banking.

Candidates may note that the processing fee is a refundable amount and candidates whose claims turn out to be relevant and thus accepted by the authorities will get the processing fee refunded. Also, no claim shall be considered for candidates who raised objections without paying the respective processing fee.

Using JEE Main Answer Key for calculating probable scores

Candidates who appear in the engineering entrance examination will be able to calculate their probable scores using the JEE Main official answer key 2021. As it is well known through JEE Main exam pattern that there is negative marking for the exam and correct answers bring certainly marks, the table below reflects the marking scheme to be referred to:

Marking Scheme of JEE Main 2020

Thus, in order to calculate the probable scores in JEE Main, candidates need to use the formula given below

Probable Score = (No. of correct answers x 4) - (No. of incorrect answers)

* It may be noted that the calculated score is repeatedly being termed as probable because the authorities may cancel any question or even change the correct response in JEE Main answer key. Thus, the score so calculated may vary with a few marks as per the final JEE Main result.

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JEE Main 2021 Answer Key by Coaching Institutes

Previous Year JEE Main Answer Key

Candidates may find the JEE Main question papers as well as answer keys for the previous sessions for the purpose of reference.

JEE Main 2020 Final Answer Key

JEE Main 2020 Question Paper and Answer Key

JEE Main April 2019 Question Papers and Answer Keys