JEE Mains 2025 January 24 Shift 1 Question Paper with Solutions - JEE Main is a highly anticipated exam for engineering hopefuls, determining access to some of India's leading technical institutions. The January 24 Shift 1 paper of JEE Main 2025, once can provide students with the opportunity to analyze the style of questions, identify trends in topic selection, and their strategies for future attempts. As the exam of other shifts evolve, candidates can expect a thought-provoking and dynamic test that challenges their understanding and application of core concepts.JEE Main answer key is released.
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JEE Main 2025 January 24 Shift 1 Examination Pattern and Structure
JEE Main 2025 January 24 Shift 1 Memory Based Questions
JEE Main 2025 January 24 Shift 1 Question Paper with Solution
JEE Main Previous Year Analysis
JEE Main 2025 Question Paper Analysis as per the previous year
JEE Mains 2025 January 24 Shift 1 Question Paper with Solutions Available - Download Link
JEE Main 2025 January 24 Shift 1 Examination Pattern and Structure
Aspect
Details
Time Duration
3 hours (180 minutes)
Number of Questions
75 questions
Highest Marks
300 marks
Exam Language
Available in 13 languages
Mode of Exam
Computer-Based Test (CBT)
Question Type
Multiple Choice Questions (MCQs) and Numerical Value-Based (NVBQs)
JEE Main 2025 January 22 Shift 1 Question Paper Overview
The exam consisted of 75 questions spread across three subjects:
Physics
25 questions
Chemistry
25 questions
Mathematics
25 questions
JEE Main 2025 January 24 Shift 1 Memory Based Questions
JEE main 2025 24 shift 1 Live session
Q.1. Which of the following is the strongest oxidising agent?
$1 \quad \mathrm{Eu}^{2+}$
$2 \mathrm{Ce}^{2+}$
$3 \mathrm{Ce}^{4+}$
$4 \quad E u^{4+}$
Q.2 If the $5^{\text {th }}, 6^{\text {th }}$ and $7^{\text {th }}$ term of the binomial expansion of $\left(1+x^2\right)^{n+4}$ are in A.P. Then the greatest binomial coefficient in the expansion of $\left(1+x^2\right)^{n+4}$ is
Q.3 The difference in melting point and boiling point of oxygen and sulphur can be explain
1 Electronegativity
2 Electron gain enthalpy
3 Atomicity
4 Ionisation energy
Q.4 The number of 3 digit numbers which is divisible by 2 and 3 but not divisible by 4 and 9 .
Q.5 If $I=I_A \sin \omega t+I_B \cos \omega t$, then find rms value of current
$1 \quad I_{r m s}=I_A+I_B$
$2 \quad I_{\mathrm{rms}}=\sqrt{I_A^2+I_B^2}$
$3 \quad I_{\mathrm{rms}}=\sqrt{\frac{l_{L_2^2+l_B^2}^2}{2}}$
$4 \quad I_{\mathrm{rms}}=\frac{1}{2} \sqrt{I_A^2+I_B^2}$
Q.6. Ribose present in DNA is
(A) It is a pentose sugar
(B) Present in pyranose form
(C) $\alpha$ anomeric carbon is present
(D) Present in D configuration
(E) It is reducing sugar in free form
Choose the correct statements :
1 A, C & E only
2 A, D & E only
3 A, B, C, D & E
4 A & E only
Q.7Difference of M.P & B.P b/w Oxygen & Sulpher can be explained by.
a) EN
b) $\Delta H_{\text {eg }}$
c) Atomicity
d) $I E$
Q.8 If A is $3 \times 3$ matrix such that $\operatorname{det}(\mathrm{A})=2$. Then $\operatorname{det}(\operatorname{adj}(\operatorname{adj}(\operatorname{adj}(\operatorname{adj} A))))$
Q.9 If 10 mol CO and 10 mol of $\mathrm{Fe}_3 \mathrm{O}_4$ reacts according to $\mathrm{Fe}_3 \mathrm{O}_4+4 \mathrm{CO} \rightarrow 4 \mathrm{CO}_2+3 \mathrm{Fe}$ What is the Weight of Fe produce?
Q.10 A drop of radius R is split into 27 drops of equal radius, the work done is 10 J . If the same big drop is split into 64 equal drops, the work done is
(A) 10
(B) 15
(C) 20
(D) $75 / 4$
Q.11 What is relative shift of focal length of a lens when optical power is increased from 0.1 D to 2.5 D?
$1 \quad 24 / 25$
2 $213 / 10$
$3 \quad 21 / 25$
$4 \quad 11 / 10$
Q.12 If the $\mathrm{K}_{\text {sp }}$ of $\mathrm{Cr}(\mathrm{OH})_3$ is $1.6 \times 10^{-30} \mathrm{M}^4$. The molar solubility of salt in water is $1.56 \times 10^{-x}$, then value of $x$ is
Q.13 Q) Radius of curvature plano convex lens is 2 cm and refractive index is $\mathbf{1 . 5}$ has focal length $f_1$ in air and $f_{\mathbf{2}}$ in a medium of refractive index 1.2. Calculate $f_1 / f_2$
Q.14 The electric flux through the shaded area of square plate of side $a$ due to point charge placed at distance of $a / 2$ from it as shown in figure, is $\frac{N Q}{48 \varepsilon_0}$. Then $N$ is
Q.15 A solid cylinder of mass $m$ and radius $r$ is released from rest at the top of a rough inclined plane making an angle of $45^{\circ}$ with the horizontal. Assuming the cylinder rolls without slipping, find the accleration of the axis of the cylinder.
Q.16 In a square loop of side length $\frac{1}{\sqrt{2}} \mathrm{~m}, \mathrm{a}$ current of 5 A is flowing. Find magnetic field at its centre in $(\mu \mathrm{T})$.
Q.17 If $\vec{a}=\hat{\imath}+2 \hat{\jmath}+3 \hat{k}, \vec{b}=3 \hat{\imath}+\hat{\jmath}-\hat{k}$ and $\vec{c}$ is coplanar with $\vec{a}$ and $\vec{b}$. Also $\vec{a} \cdot \vec{c}=5$ and $\vec{c}$ is perpendicular to $\vec{b}$. Then $|\vec{c}|$ is
Q.19 Process is non-spontaneous at freezing point but spontaneous at boiling point, find $\Delta \mathrm{H}$ and $\Delta \mathrm{S}$.
a) Both are Positive
b) Both are Negative
c) $\Delta S$ Positive, $\Delta H$ Negative
d) $\Delta \mathrm{S}$ Negative, $\Delta \mathrm{H}$ Positive
Q.20 Which of the following is most reactive towards nucleophilic addition reaction.
JEE Main 2025 January 24 Shift 1 Question Paper with Solution
The JEE Mains 2025 24 Jan Shift 1 Question Paper and Solutions is available on this page as the exam is over. These materials will be highly useful for candidates appearing in later shifts, allowing them to practice and analyze the questions, helping in better preparation for their own exam sessions.
JEE Main Previous Year's Question Paper
Practicing the previous year’s question papers is an essential part of JEE Main preparation. It allows you to familiarize yourself with the exam structure, question types, and the level of difficulty you may encounter in JEE Main 2025. Analyzing past papers helps build confidence, refine time management skills, and gives you insight into important topics. Be sure to access these valuable resources to strengthen your preparation strategy for the upcoming exam.
Differentiation and Integration formed a major part of the questions. Topics such as maxima/minima, applications of integration (e.g., area under curves), and definite integrals were frequently tested.
Differentiation also appeared in application-based questions such as finding the rate of change in various contexts.
Algebra:
A strong focus was on Quadratic Equations, with questions revolving around the properties of roots, discriminants, and equations.
Progressions (AP, GP, HP) were often tested with a mix of theoretical and application-based problems.
Matrices and Determinants were also prominent, with several questions on solving systems of linear equations and matrix properties.
Coordinate Geometry:
Key topics included Circles, Ellipses, and Hyperbolas. The questions were mostly related to finding equations of tangents and understanding geometrical properties.
Straight Lines and Parabolas were also frequently asked.
Vectors and 3D Geometry:
This section involved questions on dot product, cross product, and the equations of lines and planes in space.
2. Physics Section
Mechanics:
This area covered fundamental topics like Laws of Motion, Work-Energy, and Rotational Motion.
Questions on force, friction, acceleration, and torque were common. Concepts like angular momentum and moment of inertia were also frequently tested.
Electromagnetism:
Questions on Electrostatics (e.g., Coulomb's Law, Gauss’s Law, and electric potential) were commonly asked.
Magnetic Effects of Current and Electromagnetic Induction also had substantial representation, with questions on the magnetic field due to a current and Faraday’s Law.
Modern Physics:
Topics like the Photoelectric Effect, Atomic Models, and Nuclear Physics were often included in the paper.
Wave-particle duality and de Broglie’s wavelength were other key areas.
Thermodynamics
Questions on the first and second laws of thermodynamics, entropy, and internal energy were included.
A major portion of the Chemistry section was dominated by reaction mechanisms such as SN1/SN2 reactions, electrophilic substitution, and free radical reactions.
Hydrocarbons, Alcohols, Aromatic Compounds, and Polymers were frequently tested.
Physical Chemistry:
Topics on Thermodynamics, Chemical Kinetics, and Chemical Equilibrium had a significant presence in the exam.
Students encountered questions on enthalpy, entropy, rate laws, and Le Chatelier’s Principle.
Inorganic Chemistry:
Questions on Chemical Bonding, including hybridization, molecular orbital theory, and VSEPR theory, were quite prominent.
Coordination Compounds and questions on periodic trends such as ionization energy, atomic radius, and electronegativity were also frequently tested.
JEE Main 2025 College Predictor
Know your college admission chances in NITs, IIITs and CFTIs, many States/ Institutes based on your JEE Main rank by using JEE Main 2025 College Predictor.
JEE Main 2025 Question Paper Analysis as per the previous year
The JEE Main 2025 exam is expected to focus heavily on Calculus and Algebra in Mathematics, particularly Differentiation, Integration, and Quadratic Equations. In Physics, Mechanics, including Laws of Motion and work energy, will be key, along with Electromagnetism and Modern Physics. For Chemistry, Organic Chemistry will be dominant, with significant portions on Physical Chemistry and Inorganic Chemistry. Focus on these key areas for effective preparation.
Frequently Asked Questions (FAQs)
1.What is the expected difficulty level of the JEE Main 2025 January 24 Shift 1 exam?
The difficulty level of the JEE Main 2025 January 24 Shift 1 exam is expected to be moderate, with Mathematics being the most challenging section, followed by Physics and Chemistry. Practicing with the JEE Mains 24 Jan shift 1 question paper and the JEE Mains 2025 question paper pdf shift 1 helps improve accuracy.
2.How are the topics distributed in the Physics section of JEE Main 2025 January 24 Shift 1?
The JEE Mains 2025 question paper pdf 24 January and the JEE Mains 2025 24 Jan shift 1 paper highlight commonly asked questions. The Physics section is predicted to focus on Mechanics (laws of motion, rotational dynamics), Electromagnetism (electric and magnetic fields, circuits), and Modern Physics (photoelectric effect, atomic structure).
3.Which section is expected to be the easiest in the JEE Main 2025 January 24 Shift 1 exam?
The Chemistry section is expected to be the easiest, with a major focus on Organic Chemistry, followed by relatively simpler questions from Physical Chemistry and Inorganic Chemistry.
With a 67 percentile in JEE Main, your approximate rank would be around 3.5 to 4 lakh in the Common Rank List. Getting admission into top NITs, IIITs, or GFTIs through JoSAA may be difficult unless you have a strong category rank (SC/ST/OBC/EWS). However, you can still participate in the counselling rounds and look for seats in lesser-known GFTIs or North Eastern NITs in spot rounds, especially if you're open to any branch or location.
With 95.88 percentile in JEE Mains, your All India Rank is likely around 45,000–50,000, which gives you a decent chance to get CSE at CBIT (Chaitanya Bharathi Institute of Technology) under the B-Category (management quota).
Why you have a chance:
B-Category seats are not strictly based on JEE rank, but percentile and academic performance are considered.
95.88 percentile is considered strong for B-Category admissions, especially if you apply early and meet all requirements.
What to do:
Apply as soon as CBIT opens B-Category applications.
Yes it is possible to get admission in BTech in Gujarat even if you have not appeared for GUJCET or JEE and have not registered with ACPC but only through management quota or institute level admission Many private engineering colleges in Gujarat reserve some percentage of seats under management quota which are filled directly by the college based on class twelve marks usually in Physics Chemistry and Mathematics You need to visit the official website of the college or contact the admission office to know the eligibility fees and documents required It is important to note that government colleges and seats under the ACPC counseling process will not be available to you without GUJCET or JEE and ACPC registration Hence your chances are only in self financed private colleges through management quota
If you have got
5000 rank in JEE Main
and a
category rank of 36000
, here is what you can do:
Check Your Category and Home State Quota
Your chances depend on your category like OBC, SC, ST, EWS and home state. Category rank is useful for admission through reservation.
Use JoSAA Choice Filling
Participate in JoSAA counselling. Fill maximum choices including NITs, IIITs, GFTIs. Try branches like Metallurgy, Chemical, Civil, or newer branches in top institutes.
Target NITs and IIITs
With 5000 common rank, you have strong chances in
Top NITs
for core or less competitive branches
Good IIITs
for CSE or ECE if you belong to reserved category
Consider State Counselling Too
If you have a state quota like in Andhra Pradesh, Telangana, etc., apply in your state counselling where your chances might be higher.
Keep Backup Options
Include private colleges with good placement like VIT, SRM, or other state-level colleges if needed.
A flight attendant ensures passenger safety and comfort during flights. Key duties include conducting safety checks, assisting passengers, serving food and drinks, and managing emergencies. They must be well-trained in safety procedures and customer service. A high school diploma is typically required, followed by rigorous training to qualify for the role.
A Flight Engineer monitors and operates an aircraft’s complex systems like engines, fuel, and hydraulics during flight, ensuring optimal performance and safety. They assist pilots with technical issues, conduct inspections, and maintain records. This role requires strong technical knowledge, problem-solving, and communication skills. Training usually involves a degree in aviation or aerospace engineering and specialised certification.
An Aircrew Officer operates and navigates aircraft, ensuring safe flights and compliance with aviation regulations. Key duties include managing flight systems, conducting pre- and post-flight checks, and adhering to safety standards. The role typically requires working five days a week, with around 120 flight hours monthly. Employment may be contractual or permanent, depending on the airline.
An aerospace engineer designs, develops, tests, and maintains aircraft, spacecraft, and related systems. They apply physics and engineering principles to improve aerospace technologies, often working in aviation, defence, or space sectors. Key tasks include designing components, conducting tests, and performing research. A bachelor’s degree is essential, with higher roles requiring advanced study. The role demands analytical skills, technical knowledge, precision, and effective communication.
An air hostess, or flight attendant, ensures passenger safety and comfort during flights. Responsibilities include safety demonstrations, serving meals, managing the cabin, handling emergencies, and post-flight reporting. The role demands strong communication skills, a calm demeanour, and a service-oriented attitude. It offers opportunities to travel and work in the dynamic aviation and hospitality industry.
An aeronautical engineer designs, develops, tests, and maintains aircraft and related systems. They work on components like engines and wings, ensuring performance, safety, and efficiency. The role involves simulations, flight testing, research, and technological innovation to improve fuel efficiency and reduce noise. Aeronautical engineers collaborate with teams in aerospace companies, government agencies, or research institutions, requiring strong skills in physics, mathematics, and engineering principles.
A Safety Manager ensures workplace safety by developing policies, conducting training, assessing risks, and ensuring regulatory compliance. They investigate incidents, manage workers’ compensation, and handle emergency responses. Working across industries like construction and healthcare, they combine leadership, communication, and problem-solving skills to protect employees and maintain safe environments.
An airline pilot operates aircraft to transport passengers and cargo safely. Responsibilities include pre-flight planning, in-flight operations, team collaboration, and post-flight duties. Pilots work in varying schedules and environments, often with overnight layovers. The demand for airline pilots is expected to grow, driven by retirements and industry expansion. The role requires specialized training and adaptability.
Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues.
A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.
An architect plans and designs buildings, ensuring they are safe, functional, and aesthetically pleasing. They collaborate with clients, engineers, and contractors throughout the construction process. Key skills include creativity, design software proficiency, and knowledge of building codes. In India, a 5-year B.Arch degree and registration with the Council of Architecture are required to practise professionally.
Having a landscape architecture career, you are involved in site analysis, site inventory, land planning, planting design, grading, stormwater management, suitable design, and construction specification. Frederick Law Olmsted, the designer of Central Park in New York introduced the title “landscape architect”. The Australian Institute of Landscape Architects (AILA) proclaims that "Landscape Architects research, plan, design and advise on the stewardship, conservation and sustainability of development of the environment and spaces, both within and beyond the built environment". Therefore, individuals who opt for a career as a landscape architect are those who are educated and experienced in landscape architecture. Students need to pursue various landscape architecture degrees, such as M.Des, M.Plan to become landscape architects. If you have more questions regarding a career as a landscape architect or how to become a landscape architect then you can read the article to get your doubts cleared.
Urban Planning careers revolve around the idea of developing a plan to use the land optimally, without affecting the environment. Urban planning jobs are offered to those candidates who are skilled in making the right use of land to distribute the growing population, to create various communities.
Urban planning careers come with the opportunity to make changes to the existing cities and towns. They identify various community needs and make short and long-term plans accordingly.
A plumber installs, maintains, and repairs water, gas, and waste systems in homes and buildings. Their duties include fixing leaks, installing fixtures, testing systems, ensuring safety compliance, and working with other professionals on projects. They also document repairs and may supervise apprentices. Plumbers play a key role in ensuring public health and the smooth functioning of essential utilities.
Individuals who opt for a career as construction managers have a senior-level management role offered in construction firms. Responsibilities in the construction management career path are assigning tasks to workers, inspecting their work, and coordinating with other professionals including architects, subcontractors, and building services engineers.
Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems.
Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.
Energy efficiency engineering is a broad field of engineering which deals with energy efficiency, energy services, facility management, plant engineering, and sustainable energy resources. Energy efficiency engineering is one of the most recent engineering disciplines to emerge. The field combines the knowledge and understanding of physics, chemistry, and mathematics, with economic and environmental engineering practices. The main job of individuals who opt for a career as an energy performance engineer is to find the most efficient and sustainable path to operate buildings and manufacturing processes.
Individuals who opt for a career as energy performance engineers apply their understanding and knowledge to increase efficiency and further develop renewable sources of energy. The energy efficiency engineers also examine the use of energy in those procedures and suggest the ways in which systems can be improved.
A geologist attempts to comprehend the historical backdrop of the planet we live on, all the more likely to anticipate the future and clarify current events. He or she analyses the components, deployments, results, physical characteristics, and past of the planet. A geologist examines the landforms and landscapes of the earth in relation to the geology, climatic, and human processes that have shaped them.
A geologist studies earth procedures, for example, seismic tremors, avalanches, floods, and volcanic eruptions to review land and draw up safe structure plans. When he or she researches earth materials, explores metals and minerals, yet in addition search for oil, petroleum gas, water, and strategies to extricate these.
A career as a Petroleum engineer is concerned with activities related to producing petroleum. These products can be in the form of either crude oil or natural gas. Petroleum engineering also requires the exploration and refinement of petroleum resources. Therefore, a career as a petroleum engineer comes up with oil and gas onshore jobs. There are also desk jobs in the petroleum industry. In layman’s terms, a petroleum engineer is a person who finds the best way to drill and extract oil from oil wells. Individuals who opt for a career as petroleum engineer also tries to find new ways to extract oil in an efficient manner.
A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.
A career as a civil engineer is of great importance for the infrastructural growth of the country. It is one of the most popular professions and there is great professional as well as personal growth in this civil engineering career path. There is job satisfaction in this civil engineering career path, but it also comes with a lot of stress, as there are multiple projects that need to be handled and have to be completed on time. Students should pursue physics, chemistry and mathematics in their 10+2 to become civil engineers.
A career as a Transportation Engineer is someone who takes care of people's safety. He or she is responsible for designing, planning and constructing a safe and secure transportation system. The transportation sector has seen a huge transformation and is growing day by day and improving every day.
As a Transport Engineer, he or she needs to solve complex problems such as accidents, costs, traffic flow, and statistics. A Transport Engineer also collaborates for projects with some other companies.
A Loco Pilot operates trains, ensuring safe and timely transport of passengers or goods. Starting as an Assistant Loco Pilot, one can progress to senior roles with experience. The job demands technical knowledge, focus, and adherence to safety protocols. It involves coordination with train staff and may require working long hours under pressure.
