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13/09/2026

Welcome to SRIVASTAVA CLASSES – Dedicated to Excellence! �

In this Class 11 Chemistry One Shot Lecture, we cover Basic Concepts of Chemistry and Mole Concept in a simple, systematic and exam-oriented manner.

This lecture is especially useful for JEE Main, JEE Advanced, CBSE/Board Exams and Class 11 students.

� Topics Covered:

� Basic Concepts of Chemistry
� Laws of Chemical Combination
� Atomic Mass & Molecular Mass
� Mole Concept
� Avogadro's Number
� Molar Mass
� Mole–Mass–Particle Relationship
� Number of Atoms & Molecules
� Molar Volume & Gas Calculations
� Percentage Composition
� Empirical & Molecular Formula
� Important Chemistry Formulae
� Numerical Problems & Their Solutions
� JEE Main & Board Exam-Oriented Questions

13/09/2026

PHYSICS | ELECTROSTATICS | HC VERMA NUMERICALS | COMPLETE DISCUSSION IN ONE SHOT

12/09/2026

Welcome to SRIVASTAVA CLASSES – Dedicated to Excellence! �

In this lecture, we will discuss Kinematics – Motion in a Straight Line with a strong focus on important numerical problems, concepts, formulas and exam-oriented applications.

This video is specially designed for students preparing for JEE Main, JEE Advanced, NEET and School/Board Examinations. We will learn how to approach different types of numerical problems and understand the concepts behind the formulas rather than simply memorizing them.

� Topics Covered:

� Motion in a Straight Line
� Distance & Displacement
� Speed & Velocity
� Average & Instantaneous Velocity
� Acceleration
� Equations of Motion
� Graphs – Position-Time & Velocity-Time
� Uniform & Non-Uniform Motion
� Important Numerical Problems
� Concept-Based Questions
� Short Tricks & Problem-Solving Approach
� JEE, NEET & School Examination Questions

11/09/2026

Physics | Kinematics | Motion in Straight Line | Numerical Discussion| PART 1

11/09/2026

� PHYSICS | VECTORS & THEIR APPLICATIONS IN PHYSICS

In this video, we explore the fundamentals of Vectors and understand how vectors are used to solve important problems in Physics. This video is designed to make the concepts simple, visual, and easy to revise.

� Topics Covered:
• What is a Vector?
• Scalar vs Vector Quantities
• Representation of Vectors
• Magnitude and Direction
• Types of Vectors
• Addition and Subtraction of Vectors
• Resolution of Vectors
• Components of a Vector
• Applications of Vectors in Physics
• Important concepts and formulas
• Quick revision of key points

� Perfect for:
� Class 11 Physics
� JEE / NEET Preparation
� Board Exams
� Concept Building
� Quick Revision

� Understand the concepts visually and strengthen your Physics fundamentals!

� Subject: Physics
� Topic: Vectors and Their Applications in Physics

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11/09/2026

# # � Physics | Basic Measurement & Error Analysis – Numerical Discussion

Welcome to **Srivastava Classes**! In this Physics session, we discuss **Basic Measurement and Error Analysis** with a detailed focus on **important numerical problems**.

This lecture is designed to help students understand the concepts clearly and develop a strong approach toward solving numerical questions in Physics.

# # # � Topics Covered:

* Physical quantities and measurement
* SI Units and dimensions
* Accuracy and precision
* Significant figures
* Types of errors in measurement
* Absolute error
* Mean absolute error
* Relative error
* Percentage error
* Combination/propagation of errors
* Significant figures in calculations
* Important **Error Analysis Numericals**
* Step-by-step numerical problem solving
* Exam-oriented questions

� **Useful for:**
**JEE Main | JEE Advanced | NEET | Olympiad | Class 11 | Board Exams**

Whether you are building your Physics foundation or preparing for competitive examinations, this session will help you improve your **conceptual clarity, numerical-solving skills and accuracy**.

� Watch the complete video and try solving the questions along with the lecture.

� **Subscribe to SRIVASTAVA CLASSES** for more Physics lectures, numerical discussions, problem-solving sessions and exam-oriented content.

**Learn Physics • Build Concepts • Practice Numericals • Achieve Excellence**

# # # � Keywords:

Basic Measurement Physics, Error Analysis Physics, Error Analysis Numericals, Physics Numericals, Measurement and Errors, Significant Figures, Absolute Error, Relative Error, Percentage Error, Propagation of Errors, JEE Physics, JEE Main Physics, JEE Advanced Physics, NEET Physics, Class 11 Physics, Physics Numerical Discussion, Srivastava Classes

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10/09/2026

**HALOALKANES & HALOARENES | CLASS 12 CHEMISTRY | COMPLETE CONCEPTS & REACTIONS**

In this video, we will study **Haloalkanes and Haloarenes** in a simple and exam-oriented way. This is an important chapter for **Class 12 Chemistry, CBSE Boards, JEE, NEET and other competitive exams**.

� **Topics Covered:**
• Introduction to Haloalkanes and Haloarenes
• Classification of Haloalkanes
• Nomenclature (IUPAC)
• Nature of C–X Bond
• Preparation of Haloalkanes
• Preparation of Haloarenes
• Physical Properties
• Chemical Reactions
• Nucleophilic Substitution Reactions
• SN1 and SN2 Mechanisms
• Elimination Reactions
• Wurtz Reaction
• Finkelstein Reaction
• Swarts Reaction
• Grignard Reagent
• Reactions of Haloarenes
• Important Conversions & Name Reactions
• Important NCERT Questions
• Board & Competitive Exam-Based Questions

� **This video is useful for:**
� Class 12 Chemistry
� CBSE Board Exams
� JEE Main & Advanced
� NEET
� School & Competitive Exams
� Chemistry Revision

� **Tip:** Make sure you understand the reaction mechanisms carefully, as **Haloalkanes and Haloarenes** is a highly important chapter for solving organic chemistry problems.

� **Don't forget to:**
� Like the video
� Subscribe to the channel
� Comment your doubts/questions
� Share this video with your friends

09/09/2026

LIVE: ERROR ANALYSIS | CLASS 11 PHYSICS | JEE & NEET LEVEL �

Welcome to an important Class 11 Physics session focused on Error Analysis, a crucial topic for both JEE & NEET preparation.

In this LIVE class, we will understand the concepts of Errors and Measurements from the basics and solve important numerical problems at JEE & NEET level.

09/09/2026

� LIVE: ERROR ANALYSIS | CLASS 11 PHYSICS | JEE & NEET LEVEL �

Welcome to an important Class 11 Physics session focused on Error Analysis, a crucial topic for both JEE & NEET preparation.

In this LIVE class, we will understand the concepts of Errors and Measurements from the basics and solve important numerical problems at JEE & NEET level.

06/09/2026

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