Academia Aeternum

Basic and Fundamentals

Carbon and its Compounds-Notes

Type: Notes
November 22, 2025

Description: Carbon is one of the most remarkable elements on Earth, forming the basis of all living and many non-living substances around us. NCERT Class X Science Chapter 4, Carbon and Its Compounds, helps stude...

Metals and Non-metals-Notes

Type: Notes
November 20, 2025

Description: Chapter 3 "Metals and Non-Metals" explores the fundamental differences between these two essential groups of elements. Metals, characterized by their shiny appearance, malleability, ductility, and exc...

STRUCTURE OF THE ATOM-Notes

Type: Notes
October 28, 2025

Description: The “Structure of the Atom” marks a major milestone in our scientific journey through chemistry. This chapter unveils how scientists gradually discovered that atoms, once thought to be tiny, indiv...

ATOMS AND MOLECULES-Notes

Type: Notes
October 27, 2025

Description: Atoms and Molecules form the foundation of Chemistry, helping us understand the makeup of everything in our universe. This chapter introduces the concept of atoms—the smallest indivisible particles ...

Acids, Bases and Salts-Notes

Type: Notes
October 15, 2025

Description: Acids, bases, and salts are essential chemical substances that play a major role in our daily lives. Chapter 2 of the NCERT Class 10 Science textbook, “Acids, Bases and Salts”, introduces students...

Chemical Reactions and Equations-Notes

Type: Notes
October 2, 2025

Description: Chemical reactions are everywhere around us—rusting of iron, burning of fuels, digestion of food, photosynthesis in plants, and many more. A chemical reaction can be identified by observable changes...

Is Matter Around Us Pure-Notes

Type: Notes
September 18, 2025

Description: The world around us is made up of different kinds of substances, but are all of them pure? In this chapter, Is Matter Around Us Pure, we explore the difference between pure substances and mixtures, an...

Matter in Our Surroundings - Notes

Type: Notes
September 5, 2025

Description: This post is a collection of resources for students who are looking for solutions to the exercises of Chapter 1: Matter in Our Surroundings from the Class 9 Science textbook. This chapter is a foundat...

MCQs & True/False

Carbon and its Compounds-True/False

Type: True-False
November 22, 2025

Description: "Carbon and Its Compounds" is a fundamental chapter in Class 10 Science that explores the versatile nature of carbon, its bonding properties, and its ability to form a vast number of compounds. This c...

Carbon and its Compounds-MCQs

Type: MCQs
November 22, 2025

Description: Understanding carbon and its vast family of compounds is essential to grasp the fundamentals of organic chemistry at the Class X level. This chapter explains how carbon's tetravalency and catenation m...

Metals and Non-metals-True/False

Type: True-False
November 20, 2025

Description: Welcome to the True/False questionnaire for NCERT Class 10 Science Chapter 3 "Metals and Non-Metals." This set of thoughtfully crafted statements helps students easily recall foundational concepts, cl...

Metals and Non-metals-MCQs

Type: MCQs
November 20, 2025

Description: Understanding the properties, reactions, and applications of metals and non-metals is a key part of NCERT Class X Science. To help students strengthen conceptual clarity and exam readiness, these 50 h...

STRUCTURE OF THE ATOM-True/False

Type: True-False
October 29, 2025

Description: Understanding the structure of the atom is fundamental to modern chemistry. This set of True/False questions for NCERT Class IX Chapter 4, "Structure of the Atom," tests important concepts like the di...

STRUCTURE OF THE ATOM-MCQs

Type: MCQs
October 28, 2025

Description: The chapter “Structure of the Atom” introduces the fascinating world of subatomic particles — electrons, protons, and neutrons — and the models proposed by scientists like J.J. Thomson, Ruther...

ATOMS AND MOLECULES-True/False

Type: True-False
October 27, 2025

Description: This True/False questionnaire on NCERT Class 9 Chemistry Chapter 3 "Atoms and Molecules" is designed to help students test their conceptual understanding of key concepts. Covering Dalton’s atomic th...

ATOMS AND MOLECULES-MCQs

Type: MCQs
October 27, 2025

Description: Understanding the concepts of atoms and molecules is a fundamental part of Class 9 Science. Chapter 3 of NCERT introduces learners to the building blocks of matter — how elements combine, the laws o...

Acids, Bases and Salts-True/False

Type: True-False
October 16, 2025

Description: Test your understanding of NCERT Class 10 Science Chapter 2, "Acids, Bases and Salts," with this carefully curated True/False questionnaire. These factual statements are selected to help you revise an...

Acids, Bases and Salts-MCQs

Type: MCQs
October 16, 2025

Description: Welcome to our comprehensive collection of Class 10 Science Chapter 1 – Acids, Bases and Salts MCQs with answers and explanations. These multiple choice questions are carefully prepared from the lat...

Chemical Reactions and Equations-True/False

Type: True-False
October 3, 2025

Description: A collection of 25 True/False questions based on NCERT Class 10 Chemistry Chapter "Chemical Reactions and Equations" with explanations to support learning and exam preparation.

Chemical Reactions and Equations-MCQs

Type: MCQs
October 2, 2025

Description: This set of 50 Multiple Choice Questions (MCQs) with answers and detailed explanations is designed for Class 10 Chemistry NCERT Chapter 1 – Chemical Reactions and Equations. It covers all key topics...

Is Matter Around Us Pure-True/False

Type: True-False
September 22, 2025

Description: These 25 True/False questions are crafted to help learners explore fundamental concepts from "Is Matter Around Us Pure." The set spans the definitions and differences between mixtures and pure substan...

Matter in Our Surroundings-True/False

Type: True-False
September 22, 2025

Description: The following 25 True/False questions offer a comprehensive check of essential ideas from the chapter "Matter in Our Surroundings." These questions target fundamental properties of matter, such as wha...

Matter in Our Surroundings-MCQs

Type: MCQs
September 20, 2025

Description: Prepare effectively for your Class 9 Science exams with these 50 multiple choice questions (MCQs) based on the NCERT Chapter “Matter in Our Surroundings”. These questions cover all important topic...

Is Matter Around Us Pure-MCQs

Type: MCQs
September 18, 2025

Description: The world around us is made up of different kinds of substances, but are all of them pure? In this chapter, Is Matter Around Us Pure?, we will explore the difference between pure substances and mixtur...

Text Book Exercises

Carbon and its Compounds-Exercises

Type: Exercise
November 23, 2025

Description: Chapter 4, Carbon and Its Compounds, introduces students to the extraordinary versatility of carbon—an element that forms the basis of all living and many industrially important materials. The textb...

Metals and Non-metals-Exercises

Type: Exercise
November 21, 2025

Description: Welcome to the complete textbook solution guide for NCERT Class 10 Science Chapter 3 "Metals and Non-Metals." This comprehensive resource is designed to clarify every exercise question, offering step-...

STRUCTURE OF THE ATOM-Exercise

Type: Exercise
October 29, 2025

Description: This page provides clear, comprehensive answers to textbook exercise questions from NCERT Class 9 Science Chapter 4: Structure of the Atom. It covers foundational concepts about atomic structure, atom...

ATOMS AND MOLECULES-Exercise

Type: Exercise
October 28, 2025

Description: Atoms and Molecules—Chapter 3 of NCERT Class 9 Science—lays the foundation for understanding the building blocks of matter. These first six exercise questions cover essential concepts like laws of...

Acids, Bases and Salts-Exercise

Type: Exercise
October 17, 2025

Description: Master the key concepts of acids, bases and salts with clear answers and explanations for Class X NCERT Chapter-2 exercises, covering pH behaviour, neutralisation, indicators, neutralisation reactions...

Chemical Reactions and Equations-Exercise

Type: Exercise
October 6, 2025

Description: This chapter introduces students to the basics of chemical reactions and equations, as per the NCERT Class 10 Chemistry textbook. It covers how to write and balance chemical equations, different types...

Is Matter Around Us Pure-Exercise

Type: Exercise
September 19, 2025

Description: Textbook Exercise – Is Matter Around Us Pure? The textbook exercises for this chapter are designed to help you apply what you have learned about pure substances, mixtures, solutions, colloids, an...

Matter in our Surroundings - Exercises

Type: Exercise
September 6, 2025

Description: This post a collection of resources for students who are looking for solutions to the exercises of Chapter 1: Matter in Our Surroundings from the Class 9 Science textbook. This chapter is a foundation...

TRIGONOMETRIC FUNCTIONS-Exercise 3.2

TRIGONOMETRIC FUNCTIONS-Exercise 3.1