For a cycle traced clockwise on a $P$–$V$ diagram, the net...

The enclosed area is the net work. Traversed clockwise, the expansion...

For one mole of an ideal gas, $C_P - C_V$ equals:

Mayer's relation: $C_P - C_V = R$ per mole.The extra heat at constant...

On a $P$–$V$ diagram through the same point, the adiabatic...

Isothermal: $PV = $ constant, slope $-\dfrac{P}{V}$.Adiabatic...

The coefficient of performance of a refrigerator is defined...

COP is the useful effect divided by the cost: heat extracted from the...

The pressure of an ideal gas in kinetic theory is $P =...

Each molecular impact on a wall reverses a component of momentum, and...

momentum transfer in molecular...

The internal energy of one mole of a monatomic ideal gas at...

A monatomic gas has three translational degrees of freedom, each...

Equal masses of water at $20^\circ$C and $80^\circ$C are...

With equal masses of the same substance, the heat lost by the hot...

During melting at constant pressure, the temperature of a...

The supplied energy goes into breaking the lattice bonds rather than...

How many questions are in the JEE Main Full Mock Test 10?

It has 75 questions and a time limit of 180 minutes.

Is the JEE Main Full Mock Test 10 free?

It costs Rs 2,000 for the whole series, which includes full worked solutions and a detailed score report.

Yes. After you submit, every question shows a step-by-step solution alongside your answer.

JEE Main Mathematics 2027 Rs 2,000

JEE Main Full Mock Test 10

Q: Is there negative marking?

Yes. Each correct answer scores 4 and each wrong answer loses 1.

JEE Main full mock test 10 on the exact NTA pattern: 75 questions, 300 marks, 180 minutes, with negative marking on Section B. Thermodynamics, equilibrium and vectors emphasis.

75~~Questions~~

180~~Minutes~~

300~~Marks~~

-1 ~~Negative~~

11-12~~Grades~~

About this test

JEE Main Full Mock Test 10 is a full 75-question paper you attempt online in 180 minutes. It follows the Joint Entrance Examination Main pattern, so the timing, the question style and the marking match the real exam. Each correct answer scores 4 and each wrong answer loses 1. Guessing carries a real cost, exactly as it does on the day.

You get your score the moment you submit, question by question, with a step-by-step solution to every problem. NTA pattern, three subjects, negative marking.

What it covers

Zeroth law First law - sign convention PV diagram - cyclic work Specific heats - relation Isothermal vs adiabatic Refrigerator - coefficient of performance Kinetic theory - pressure Degrees of freedom Thermal equilibrium - mixing Latent heat Newton law of cooling Vectors - resolution Vectors - unit vector direction Vectors - cross product direction Equilibrium of forces Electrostatics - equipotential Current - resistivity Magnetism - moving coil galvanometer Optics - power of combination Modern physics - work function units Thermodynamics - efficiency Kinetic theory Calorimetry - latent heat Vectors Adiabatic process Equilibrium - dynamic nature Equilibrium - Kp expression Equilibrium - temperature effect Ionic equilibrium - degree of dissociation Ionic equilibrium - common ion Equilibrium - Le Chatelier inert gas Thermodynamics - Gibbs energy Solubility equilibrium Acids and bases - conjugate pairs Thermochemistry - bond energy Electrochemistry - salt bridge Kinetics - molecularity Solutions - azeotrope Surface chemistry - physisorption Inorganic - ammonia manufacture Organic - acidity comparison Organic - addition to carbonyl Organic - oxidation of alkenes Biomolecules - vitamins Polymers - vulcanisation Equilibrium Ionic equilibrium Thermochemistry Electrochemistry Stoichiometry Vectors - magnitude Vectors - angle Vectors - area of triangle Vectors - coplanarity condition Vectors - projection formula 3D geometry - direction ratios 3D geometry - plane from normal Calculus - increasing function Calculus - definite integral sign Algebra - discriminant Sequences - AM GM inequality Trigonometry - sine rule Complex numbers - polar form Matrices - scalar multiplication Probability - complementary counting Statistics - variance formula Coordinate geometry - circle general form Calculus - chain rule composite Functions - composite Sets - De Morgan Vectors - dot product 3D geometry Algebra Calculus

Sections

Physics - Section A — 20 questions
Physics - Section B — 5 questions
Chemistry - Section A — 20 questions
Chemistry - Section B — 5 questions
Mathematics - Section A — 20 questions
Mathematics - Section B — 5 questions

Difficulty spread

33 easy questions
39 medium questions
3 hard questions

Before you start

Pattern. 75 questions, 300 marks, 180 minutes. Each of Physics, Chemistry and Mathematics has 20 multiple-choice questions (Section A) and 5 numerical-answer questions (Section B), for 100 marks per subject.

Marking. +4 for a correct answer, −1 for an incorrect answer, 0 if unattempted. Negative marking applies to Section B as well — numerical questions are not risk-free, and this is where unit and sign errors concentrate.

Section B is compulsory. All 5 numerical questions in each subject must be attempted. The “any 5 of 10” arrangement ended with the COVID-era papers.

Before you start. Phone in another room, single screen, no reference material. Sit the full 180 minutes in one session — a paper taken in pieces measures nothing.

A look at the questions

Q1. The zeroth law of thermodynamics defines:

A) internal energy

B) entropy

C) temperature

D) enthalpy

Q2. Using $\Delta U = Q - W$ with $W$ the work done by the gas, an adiabatic compression gives:

A) $\Delta U > 0$

B) $\Delta U < 0$

C) $\Delta U = 0$

D) $Q > 0$

73 more questions in the full paper, each with a worked solution.

Questions people ask

How many questions and how long?

75 questions in 180 minutes for 300 marks - 20 multiple-choice and 5 numerical in each of Physics, Chemistry and Mathematics.

Is there negative marking on the numerical questions?

Yes. +4 correct, -1 incorrect, 0 unattempted, and that applies to Section B as well as Section A.

What does this paper focus on?

Thermodynamics, equilibrium and vectors emphasis.