Krishna Kumar Sah

Welcome to Krishna Kumar Sah (ChembyKKSir)– Your Trusted Chemistry Mentor for NEET & JEE!
Led by Krishna Kumar Sah Sir (Ex-ALLEN & IITian’s PACE) with 15+ years of experience. Mentored NEET AIR 75, JEE AIR 48, 1000+ MBBS, 150+ NIT & 50+ IITians. Specializes in NCERT-focused Chemistry for Classes 11, 12 & Repeaters.

🎯 What You’ll Learn:
• Chapter-wise Lectures
• Organic, Inorganic & Physical Simplified
• Named Reactions & Mechanisms
• PYQ Analysis, Mock Tests & Rank Boosting Tips

🧪 Focus: Concept Clarity | Confidence | Consistency
🧑‍🏫 AcademicHead – EURO JEE-NEET, PCMC Pune
📍 Based in PCMC, Maharashtra
📞 WhatsApp: 7703821345
🔔 Subscribe & start your NEET-JEE success journey now!

23 December 2025

22 December 2025

20 December 2025

19 December 2025

Ionic Equilibrium Lecture 8 | Common Ion & Odd Ion Effect | Solubility & α | NEET

Ionic Equilibrium Lecture 9 | Buffer Solution Complete Theory, Types & pH Calculation | NEET & JEE

Ionic Equilibrium Lecture 2 | Strong & Weak Electrolytes, Acids and Bases | Class 11 JEE

NEET 2028 Advanced Batch Lecture 1 | Vision, Strategy & Chemistry Roadmap | ChembyKKSir

Organic Chemistry Lecture 6 (Part-2) | Complex Substituents & Advanced Prefix Rules | IUPAC | NEET

Organic Chemistry Lecture 6 (Part-1) |IUPAC Alkyl, Alkenyl, Alkynyl, Cyclo Groups | Class 11 NEET

Ionic Equilibrium Lecture 7 | pH Numericals Revision & Weak Electrolyte Ionization | NEET

Ionic Equilibrium Lecture 6 | pH Calculations of Acids, Bases, Salts & Acid–Base Mixtures Numerical

Organic Chemistry Lecture 5 | IUPAC Nomenclature Basics, Prefixes, Word Root & Substituent Naming

Ionic Equilibrium Lecture 5 | pH, pH Scale & Ionic Product of Water (Kw) | Temperature Effect on pH

Organic Chemistry L-4 Degree of C & H , α-β-γ Carbon, Types of Alcohols, Alkyl Halides & Amines

Organic Chemistry Lecture 3 | Hybridization, σ–π Bonds & Structural Representations | Class 11 NEET

Ionic Equilibrium Lecture 4 | Ostwald’s Dilution Law, Degree of Ionization & Ionic Product of Water

Ionic Equilibrium Lecture 3 | Lewis Acid–Base Concept & Classification of Salts | JEE NEET

Ionic Equilibrium Lecture 1 | Introduction, Strong & Weak Electrolytes, Acids and Bases Class 11 JEE

Ionic Equilibrium Lecture 2 | Acids, Bases & Salts – Arrhenius, Brønsted–Lowry & Lewis Concepts NEET

9 December 2025

Organic Chemistry Lecture 2 | Hybridization, σ–π Bonds & Structural Representations | Class 11 NEET

Organic Chemistry Lecture 1 | Introduction to Organic Compounds, Importance, History & Scope

Ionic Equilibrium Lecture 1 | Introduction, Electrolytes, Strong & Weak Acids and Bases | JEE NEET

Chemical Equilibrium Lecture 7 | Le Chatelier Principle, Pressure, Volume, Temp , Inert Gas addition

Chemical Equilibrium Lecture 5 P-2 | JEE Adv Kp–Kc Questions, Le Chatelier’s Principle Eqm Shifts