JEE Main 2023 (Online) 15th April Morning Shift

MCQ (Single Correct Answer)

-1

Which of the following statement is correct for paper chromatography?

Water present in the mobile phase gets absorbed by the paper which then forms the stationary phase.

Water present in the pores of the paper forms the stationary phase.

Paper sheet forms the stationary phase.

Paper and water present in its pores together form the stationary phase.

JEE Main 2023 (Online) 13th April Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.

Reason R : The light scatters in all directions when the size of particles is large enough.

In the light of the above statements, choose the correct answer from the options given below:

Both A and R are correct and R is the correct explanation of A

A is true but R is false

Both A and R are correct but R is NOT the correct explanation of A

A is false but R is true

JEE Main 2023 (Online) 13th April Morning Shift

MCQ (Single Correct Answer)

-1

What happens when a lyophilic sol is added to a lyophobic sol?

Film of lyophobic sol is formed over lyophilic sol.

Lyophilic sol is dispersed in lyophobic sol.

Film of lyophilic sol is formed over lyophobic sol.

Lyophobic sol is coagulated

JEE Main 2023 (Online) 12th April Morning Shift

MCQ (Single Correct Answer)

-1

Four gases A, B, C and D have critical temperatures $$5.3,33.2,126.0$$ and $$154.3 \mathrm{~K}$$ respectively. For their adsorption on a fixed amount of charcoal, the correct order is:

D > C > B > A

C > B > D > A

D > C > A > B

C > D > B > A

JEE Main Subjects

Physics

Mechanics

Units & Measurements Vector Algebra Motion Circular Motion Laws of Motion Work Power & Energy Center of Mass and Collision Rotational Motion Properties of Matter Heat and Thermodynamics Simple Harmonic Motion Waves Gravitation

Electricity

Electrostatics Current Electricity Capacitor Magnetic Effect of Current Magnetic Properties of Matter Electromagnetic Induction Alternating Current Electromagnetic Waves

Optics

Geometrical Optics Wave Optics

Modern Physics

Atoms and Nuclei Dual Nature of Radiation Semiconductor Communication Systems

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Chemical Equilibrium Ionic Equilibrium Solutions Thermodynamics Electrochemistry Chemical Kinetics and Nuclear Chemistry Solid State Surface Chemistry

Inorganic Chemistry

Periodic Table & Periodicity Chemical Bonding & Molecular Structure Isolation of Elements Hydrogen s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry

Organic Chemistry

Basics of Organic Chemistry Hydrocarbons Haloalkanes and Haloarenes Alcohols, Phenols and Ethers Aldehydes, Ketones and Carboxylic Acids Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry

Mathematics

Algebra

Sets and Relations Logarithm Quadratic Equation and Inequalities Sequences and Series Mathematical Induction Binomial Theorem Matrices and Determinants Permutations and Combinations Probability Vector Algebra 3D Geometry Complex Numbers Statistics Mathematical Reasoning

Trigonometry

Trigonometric Ratio and Identites Trigonometric Equations Inverse Trigonometric Functions Properties of Triangle Height and Distance

Coordinate Geometry

Straight Lines and Pair of Straight Lines Circle Parabola Ellipse Hyperbola

Calculus

Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integrals Definite Integration Area Under The Curves Differential Equations