**JEE Main 22 Jul 2021 Question Paper with Answer Key **– NTA has released JEE Main 22 Jul 2021 answer key at jeemain.nta.nic.in. On the basis of the official answer key, JEE Main 2021 result will be compiled. **JEE Main 22 July 2021 questions and answers** are available now. The answer key given on this page is memory-based. It has been released by various coaching institutes and experts. The experts have prepared these questions and solutions on the basis of the analysis of the students who appeared for the exam. Know more about **JEE Main 22 Jul 2021 question paper with answer key**.

**Direct Link To Check:** **Click here** to check the JEE Main 22 Jul 2021 Question Paper with Answer Key (Official).

**Latest**: JEE Main 22 July 2021 is available below.

>> Answer key by Resonance will be available soon.

>> There was no exam in shift 1 today.

**JEE Main 2021 Answer Key By Resonance for Shift 2 **

Maths | Download Here |

Physics | Download Here |

Chemistry | Download Here |

## JEE Main 22 Jul 2021 Question Paper with Answer Key

From here, students can check JEE Main 22 July 2021 questions and answer.

**Q. **Which of the following is the strongest reducing agent in group 15?

- AsH
_{3} - SbH
_{3} - BiH
_{3} - PH
_{3}

**A. ** Correct option is c

**Q**. More dissolved oxygen is found in?

**A**. Water at 4 degree celsius.

**Q. **A radioactive element of mass number 108 undergoes α – decay. If the Q – Value of reaction is known to be 5.5 MeV, then find the kinetic energy of α – particle.

**A. **5.3 meV

**Q**. If concentration of glucose (C6H12O6) in blood is 0.72 g l-1. The molarity of glucose is?

**A**. 0.004

**Q**. Number of acyclic structural isomers of penten are:

**A**. 5

**Q**. Benzen diazonium chloride reacts with H3PO2 to give?

**A**. Benzene

**Q.** A line of charge having a linear charge density of 3 x 10^{-6 }C/m is placed. A dipole is placed on the x-axis as shown. Find the charge q, if it is subjected to a force of 4N.

**A. **40/9 μC

**Q. **The number of solution(s) of sin^{7 }x + cos^{7 }x = 1 in [0, 4π] is

**A. **x = π/2 or 5π/ 2 or x = 0, 2π

**Q**. A body takes 5 minutes to cool from 75^{0}C to 65^{0}C. Find the temperature in the next 5 minutes, if the room temperature is 25^{0}C.

**A**. 57^{0}C

**Q. **Let S_{n }denote the sum of first n – terms of arithmetic S_{10 }= 530 and S_{5} = 140. Then find the value of S_{20 }– S_{6}.

**A. **1862

**Q**. A simple pendulum of length L_{0} can perform simple harmonic oscillations with a time period T_{0}. If the length of the pendulum is decreased to then the time period of oscillation will become?

**A**. T_{0} / 4

**Q. **If the domain f(x) = cos^{-1} (x^{2}-x+1) / sin^{-1}(2x-1 / 2) is the interval (α, β), then α + β is

**A. **3/2

**Q**. A gun of mass 4 kg initially at rest, fires a bullet of mass 4 g with a speed of 50 m / sec as seen by the observer on ground. Find the impulse n bullet and recoil speed of gun.

**A**. 0.2 kg / sec, 0.05 m / sec

**Q. **Isotope of hydrogen which emits low entergy β^{-1 }particle with t_{0.5 }value greater than 12 years is:

**A. **Tritium** **

**Q. **Which statement is not true for DI Mendeleev?

- Author of principle of Chemistry
- Invented accurate barometer
- He proposed periodic table when structure of atoms were unknown
- Element with atomic number 101 is named after him

**A. **Correct option is (b)

**Q. **Methylation of 10g of benzene gives 9.2g of toluene, the % of yield is:

**A. **78%

**Q**. The number of solution(s) of sin^{7} x + cos^{7} x – 1 in [0, 4π] is?

**A**. 0, 2π

**Q. **Which of the following 0.05M solution has the lowest freezing point?

**A. **Al_{2}(SO_{4})_{3}

**Q**. What should be the height of transmission antenna, if the television telecast is to cover a radius of 1500 km? The average population around the tower is 2000 per square per mile.

**A**.** **1.76 x 10^{5}m

**Q**. The current through diode is 90mA. Find the maximum value of R.

**A. **500Ω

**Q.** A proton of mass m_{p }and electron of mass m_{e }are accelerated through the same potential, the ratio of de-Broglie wavelength of electron to that of proton is:

**A. **m_{p}/m_{e}

*Appeared for JEE Main on 22 July 2021? Then you can help us curate the memory-based questions and answers by submitting the questions asked in the exam. Just click on the button below to submit your questions and / or answers.*

### How to Calculate Scores Using JEE Main 22 July 2021 Answer Key?

Through JEE Main answer key, the candidates can predict the scores. Check the steps given below to calculate the scores.

**1st step: **First of all, download JEE Main 2021 answer key of the particular shift.

**2nd step: **Also, download the question paper. Now, start cross-checking the answers.

**3rd step:** Now, write down the correct and incorrect answers. Use the marking scheme given below to calculate the scores.

- Add 04 marks for each MCQ and Numerical value correct answer
- Deduct 01 marks for each incorrect answer (applicable for MCQ only)
- There is no negative marking for incorrect Numerical answer type question

**4th step:** After calculating the marks, the score obtained will be the probable marks.

### JEE Main 22 July 2021 Question Paper

JEE Main 22 July question paper releases along with the particular shift’s answer key. The question papers are released by the coaching institutes only. Memory-based questions are prepared according to the student’s input about the exam. Various coaching institutes that release the question paper after the exam are Allen, Aakash, Resonance, Motion IIT JEE.

### JEE Main 2021 Official Answer Key

NTA releases the official answer key few days after the exams for all the shifts are over. The answer key is released at the candidate’s login. Given below are the steps to download the official answer key.

**1st step:** Go to the official website, jeemain.nta.nic.in and click on the ‘view question paper and challenge answer key’ button.

**2nd step:** Then, click on the ‘answer key’ button.

**3rd step:** Now, select the option through which answer key has to be download and enter the same in the login:

- Application number and password OR
- Application number and date of birth

**4th step:** Click on the ‘sign-in’ button after entering the details.

**5th step:** Now, download the PDF of answer key and save it.

### JEE Main 2021 Exam Pattern

JEE Main is a computer-based exam (except drawing test in B.Arch). The candidates are given 3 hours to complete the exam. The test comprises multiple-choice questions and numerical value answer type questions. The test is conducted for admission in to B.Tech, B.Arch and B.Plan courses.

**Distribution of questions**

**B.E / B.Tech **

Subject | Section A | Section B (only 5 ques to be attempted) | Marks |
---|---|---|---|

Mathematics | 20 | 10 | 100 |

Physics | 20 | 10 | 100 |

Chemistry | 20 | 10 | 100 |

Total | 300 |

**B.Arch **

Subjects | Section A | Section B (Any 5) | Marks |
---|---|---|---|

Mathematics (Part I) | 20 | 10 | 100 |

Aptitude Test (Part II) | 50 | – | 200 |

Drawing Test (Part III) | 02 | – | 100 |

Total | 400 |

**B.Plan **

Subjects | Section A | Section B (Any 5) | Marks |
---|---|---|---|

Mathematics (Part I) | 20 | 10 | 100 |

Aptitude Test (Part II) | 50 | – | 200 |

Planning Based objective questions | 25 | – | 100 |

Total | 400 |

### JEE Main Previous Year Cut Off

Along with the result, the cut-off scores are also released. These scores are required for the candidates to appear for JEE Advanced. Check the cut-off given below.

Category | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
---|---|---|---|---|---|---|

Open | 90.3765335 | 89.7548849 | 74 | 81 | 100 | 105 |

GEN-EWS | 70.2435518 | 78.2174869 | – | – | – | – |

OBC -NCL | 72.8887969 | 74.3166557 | 45 | 49 | 70 | 70 |

SC | 50.1760245 | 54.0128155 | 29 | 32 | 52 | 50 |

ST | 39.0696101 | 44.3345172 | 24 | 27 | 48 | 44 |

PwD | 0.0618524 | 0.11371730 | -35 | 01 | – | – |

### JEE Main 2021 Result

JEE Main 2021 result is compiled on the basis of the final answer key. The candidates can check the result at jeemain.nta.nic.in. To check the result, the candidates have to enter the application number and date of birth.

- No scorecard is dispatched to the candidates. It has to be downloaded from the official website only.
- There is no provision of re-checking or re-evaluation of the score.
- Raw marks obtained by the candidates in different shifts are converted to NTA score.
- All India Rank shall be compiled and declared after the conduct of the exam of all the sessions.

## FAQs on JEE Main 22 Jul 2021 Answer Key

**Ques. How can I download the unofficial answer key?**

Ans. The unofficial answer key will be given above on this page.

**Ques. Can I challenge the unofficial answer key?**

Ans. No, you can cannot challenge the unofficial answer key.

**Ques. What is the official website to download the answer key?**

Ans. You can download the official answer key at jeemain.nta.nic.in.

**Ques. Is there any negative marking for wrong answers in JEE Main?**

Ans. Yes, 01 marks will be deducted for each incorrect MCQ answer.

**Official Website: jeemain.nta.nic.in**