JEE Main 2021 (Online) 17th March Evening Shift | Periodic Table & Periodicity Question 44 | Chemistry

PREVIOUS NEXT

JEE Main 2021 (Online) 17th March Evening Shift

MCQ (Single Correct Answer)

-1

The common positive oxidation states for an element with atomic number 24, are :

+1 and +3

+2 to +6

+1 to +6

+1 and +3 to +6

JEE Main 2021 (Online) 17th March Morning Shift

MCQ (Single Correct Answer)

-1

The absolute value of the electron gain enthalpy of halogens satisfies :

Cl > Br > F > I

Cl > F > Br > I

I > Br > Cl > F

F > Cl > Br > I

JEE Main 2021 (Online) 16th March Evening Shift

MCQ (Single Correct Answer)

-1

The characteristics of elements X, Y and Z with atomic numbers, respectively, 33, 53 and 83 are :

X and Y are metalloids and Z is a metal.

X and Z are non-metals and Y is a metalloid.

X is a metalloid, Y is a non-metal and Z is a metal.

X, Y and Z are metals.

JEE Main 2021 (Online) 16th March Evening Shift

MCQ (Single Correct Answer)

-1

Identify the elements X and Y using the ionisation energy values given below :

	Ionization energy (kJ/mol)
	1$${st}$$	2$${nd}$$
X	495	4563
Y	731	1450

X = F; Y = Mg

X = Mg; Y = F

X = Na; Y = Mg

X = Mg; Y = Na

PREVIOUS NEXT

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 Magnetics Alternating Current and Electromagnetic Induction

Optics

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

Trigonometry

Trigonometric Functions & Equations Inverse Trigonometric Functions Properties of Triangle

Coordinate Geometry

Straight Lines and Pair of Straight Lines Circle Conic Sections

Calculus

Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integrals Definite Integrals and Applications of Integrals Differential Equations