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  5. JEE Advanced 2026 Final Answer Keys...
JEE-ADV
Jun 1, 2026
7 min read
JEE Advanced Official

JEE Advanced 2026 Final Answer Keys Released: Download Paper 1 Answer Key PDF & Check Marking Scheme

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Overview

Key Highlights

  • Official Announcement: The IITs have officially released the final answer keys for JEE Advanced 2026 Paper 1.
  • Complete Coverage: Official keys for Mathematics, Physics, and Chemistry sections are now fully available.
  • No Guesswork: Check final answers, direct solutions, and exact marking schemes for all multiple-section questions.
  • Marking Variations: Detailed insights on partial markings (+1, +2, +3), full marks (+4), and negative marks (-1) included.

JEE Advanced 2026 Paper 1 Final Answer Keys

The wait is finally over for lakhs of engineering aspirants across the country! The organizing IIT has officially published the JEE Advanced 2026 Final Answer Keys for Paper 1. Candidates who appeared for this highly competitive national-level examination can now download the PDF to verify their responses and accurately project their ranks before the final results are announced.

JEE Advanced is globally recognized as one of the toughest entrance exams for undergraduate engineering programs. Securing a seat in the premier Indian Institutes of Technology (IITs) depends heavily on every single mark. Having access to the verified, final keys lets you bypass anxiety and prepare for the upcoming JoSAA/CSAB counseling sessions with confidence.

Career Impact: Why This Notice Matters

Your JEE Advanced score determines your entry into elite programs such as B.Tech, Dual Degree, and Integrated M.Tech across the 23 prestigious IITs. Whether your dream is Computer Science Engineering at IIT Bombay, Electrical Engineering at IIT Delhi, or Aerospace at IIT Madras, the final answer key is the ultimate baseline. Knowing your score early helps you select realistic choice-filling options during counseling, giving you a competitive edge over candidates who wait until the last minute.

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Important Dates

EventDate
JEE Advanced 2026 Examination Date01 May, 2026
Release of Provisional Answer Keys01 Jun, 2026
Release of Final Answer Keys & Declaration of Results01 Jun, 2026

Syllabus Highlights

Structure of Paper 1 and Subject-Wise Key Answers

To ensure complete accuracy, we have compiled the detailed layout of Paper 1 sections along with the official, verified answers across Mathematics, Physics, and Chemistry.


1. Mathematics Section Details

  • Section 1: Single Option Correct (Max Marks: 12)
    • Q1: Real function analysis ($f(x) = \sqrt{x}\log_e(x) - x + 1$) → Answer: D
    • Q2: Parabola, circle, and ellipse tangents → Answer: C
    • Q3: Row transformations on a $3 \times 3$ identity matrix → Answer: B
    • Q4: Principal values of inverse trigonometric functions → Answer: C
  • Section 2: One or More Than One Option Correct (Max Marks: 16)
    • Q5: Probability distribution of colored balls in boxes → Answer: AC
    • Q6: 3D Coordinate geometry of planes → Answer: AD
    • Q7: Continuity and differentiability of $g(x) = xf(x)$ → Answer: BD
    • Q8: Properties of matrix exponents & sum → Answer: ACD
  • Section 3: Numerical Value Questions (Max Marks: 16)
    • Q9: Equivalence relations on set S → Answer: [2520]
    • Q10: Non-continuity & non-differentiability points → Answer: [5]
    • Q11: Permutations & Combinations (red and blue pens) → Answer: [206]
    • Q12: Multi-variable trigonometric product → Answer: [3.9 TO 4.1]
  • Section 4: Matching List Sets (Max Marks: 16)
    • Q13: Distinct roots of quadratic equations → Answer: C
    • Q14: Number of elements in trigonometric sets → Answer: B
    • Q15: Vector cross-products and matrices → Answer: A
    • Q16: Geometry of circles, parabolas, and ellipses → Answer: B

2. Physics Section Details

  • Section 1: Single Option Correct (Max Marks: 12)
    • Q1: Angular velocities of rolling disks → Answer: C
    • Q2: Self-inductance & resonant frequency of coils → Answer: C
    • Q3: Rotational motion & center of mass speed → Answer: B
    • Q4: Power variation of double convex lens → Answer: A or B
  • Section 2: One or More Than One Option Correct (Max Marks: 16)
    • Q5: Hydrogen atom transitions & Lyman series → Answer: AC
    • Q6: Projectile motion trajectories → Answer: AB
    • Q7: Thermodynamics of monoatomic ideal gas cycles → Answer: ABC
    • Q8: Electromagnetic wave vectors in vacuum → Answer: AC
  • Section 3: Numerical Value Questions (Max Marks: 16)
    • Q9: Oscillation time period of a submerged rod → Answer: [1.70 to 1.75]
    • Q10: Net efficiency of multiple Carnot engines → Answer: [0.32 to 0.34]
    • Q11: Thermal conductivity in partitioned containers → Answer: [0.63 to 0.70]
    • Q12: Magnetic field of a rotating hollow cone → Answer: [0.50]
  • Section 4: Matching List Sets (Max Marks: 16)
    • Q13: Sound waves in narrow tubes → Answer: D
    • Q14: Optical effects (Aurora Borealis, Rainbow, etc.) → Answer: A
    • Q15: Rotating conducting loops & induced current → Answer: C
    • Q16: Moment of inertia of planar structures → Answer: A

3. Chemistry Section Details

  • Section 1: Single Option Correct (Max Marks: 12)
    • Q1: Thermodynamics of ideal gas compression → Answer: B
    • Q2: Reversible chemical reaction rates & kinetics → Answer: C
    • Q3: Dipole moments of molecules → Answer: A
    • Q4: Stereoselectivity of ester reductions with $LiBH_4$ → Answer: C
  • Section 2: One or More Than One Option Correct (Max Marks: 16)
    • Q5: Orbital energies of Hydrogen & Lithium atoms → Answer: ABD
    • Q6: Inorganic reactions of $MnO_2$ and $NH_3$ → Answer: AC
    • Q7: Redox and fluorinating behavior of $PtF_6$ with $O_2$ → Answer: BC
    • Q8: Multi-step organic conversion reactions → Answer: ABC
  • Section 3: Numerical Value Questions (Max Marks: 16)
    • Q9: Mass ratios of ideal gases in pistons → Answer: [9.80]
    • Q10: Total isomers of square planar complexes → Answer: [8]
    • Q11: Total carbonyl groups in major products → Answer: [4]
    • Q12: Collinear carbon atoms in alkyne derivatives → Answer: [6]
  • Section 4: Matching List Sets (Max Marks: 16)
    • Q13: Thermodynamic enthalpy and entropy relations → Answer: C
    • Q14: Shapes of Xe, S, Cl fluoride compounds → Answer: A
    • Q15: Ozonolysis and subsequent cyclization products → Answer: C
    • Q16: Organic product formation with $NaOH$ & reagents → Answer: B

How to Download Answer Key

How to Calculate Your Marks Using the Final Answer Key

Follow these step-by-step instructions to map your response sheet against the final key and estimate your final raw score:

  1. Step 1: Download your official JEE Advanced 2026 Paper 1 Response Sheet from the candidate portal.
  2. Step 2: Open the subject-wise final answer keys detailed above.
  3. Step 3: For Section 1 (Single Correct): Add +3 for matches, subtract -1 for mismatches.
  4. Step 4: For Section 2 (One or More Correct): Apply the complex partial marking criteria strictly. Add +4 only if all correct choices are marked. Carefully add +3, +2, or +1 according to the partial marking instructions. Deduct -1 for incorrect configurations.
  5. Step 5: For Section 3 (Numerical Value): Match your rounded-off decimal answers against the ranges provided (e.g., [1.70 to 1.75]). Add +4 for a match. There is no negative marking in this section.
  6. Step 6: For Section 4 (Matching Lists): Add +4 for correct options, deduct -1 for incorrect options.

⚠️ Pro-Tip / Common Mistakes to Avoid

Do not rush when checking Section 2 (One or More Correct) options. Candidates often mistakenly give themselves full marks (+4) when they only qualify for partial marks (+2 or +3). Keep a close eye on the negative marks in Section 1, 2, and 4 to avoid overestimating your final score.

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Frequently Asked Questions

Is there any negative marking in Section 3 (Numerical Value Questions) of Paper 1?

No, there is absolutely no negative marking in Section 3 of Paper 1. Candidates receive +4 marks if the correct numerical value is entered, and 0 marks in all other cases.

What happens if a question has multiple correct options in Section 1?

In Section 1, only one option is correct. If the organizing committee finds that more than one option is technically accurate, full marks are awarded to candidates who selected any of the correct options as clarified in the final key rules.

How are decimal answers checked in the numerical sections?

Numerical answers must be truncated or rounded off to two decimal places. The final answer key specifies an acceptable range (e.g., [3.9 to 4.1]) to accommodate minor calculation variances.

Where can I download the final answer key PDF?

The official final answer keys are accessible directly on the official JEE Advanced portal (jeeadv.ac.in). Candidates can check the subject-wise answer keys listed in this guide to calculate their scores instantly.

Official Notification

Always verify all details on the official government website before submitting your application.

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