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!

1 November 2025

Coordination Compounds: Ligands, Werner's Theory, and Types of Ligands (Lecture 2)

Coordination Compounds L-1 | #jEE -NEET Chemistry | Introduction, Basic Terms & Werner's Theory#neet

IUPAC Senior Functional Groups: Full Table, Special Suffixes & Naming Rules (Organic Chemistry)

Lecture 4 | KMnO₄ & K₂Cr₂O₇ Reactions, Preparation, Oxidation, Bonding,OxidesOxocations | JEE NEET

30 October 2025

All Types of Enthalpy of Reaction | Heat of Formation, Combustion, Neutralization | JEE NEET CBSE

Chemical Bonding Lecture 5 Part 3 Octet Rule, VBT, VSEPR, MOT | JEE NEET Class 11

All Types of Enthalpy of Reaction | Heat of Formation, Combustion, Neutralization | JEE NEET CBSE

Chemical Bonding Lecture 5 Part 2 Octet Rule, VBT, VSEPR, MOT | JEE NEET Class 11

Chemical Equilibrium Lecture 1 | Types of Chemical Reactions | Class 11 NEET Chemistry Basics

Thermodynamics & Thermochemistry Lecture | Heat of Reaction, Enthalpy Types | JEE NEET CBSE ICSE

⏰ The 24-Hour Breakdown: How to Reclaim 14 Hours of Effective Study for #NEET/#JEE

Chemical Bonding Lecture 4 Part 2|Made Easy by 6 Unique Rules | Octet Rule | JEE NEET Class 11

Chemical Bonding Lecture 5 Part 1 Octet Rule, VBT, VSEPR, MOT | JEE NEET Class 11

27 October 2025

Lecture 3 | Ionization Energy, Oxidation State, Electrode Potential, Oxides & Halides | JEE NEET

What to Do in Remaining 187 Days for NEET 2026 | Ultimate Strategy for NEET Repeaters |Mentorship

Thermodynamics & Thermochemistry | ΔH = ΔU + ΔngRT Explained | Hess Law,Heat of Reaction ChembyKKSir

Students Made My Day Special | A Teacher’s Most Cherished Birthday Celebration 🎂#eurojeeneet

How to Study d & f-Block Elements | Class 12 Inorganic Chemistry Lecture 2 | JEE NEET |ChembyKKSir

Internal Energy & Enthalpy Explained | Thermodynamics & Thermochemistry Lecture | JEE NEET CBSE

Chemical Bonding Lecture 4| Exclusive 6 Rules to Draw Covalent Molecules & Ions Structures

How to Study Inorganic Chemistry | Class 12 CBSE | JEE Main | JEE Advanced | NEET🎓 (ChembyKKSir)

📘 Lecture 4 – Thermodynamics & Thermochemistry Series by Krishna Kumar Sah (ChembyKKSir)

Chemical Bonding Lecture 3 (Part 2) | Exclusive 6 Rules to Draw Covalent Molecules & Ions Structures

📘 L3 P1Adiabatic & Isothermal Reversible & Irreversible Process | Graph&Slope | JEE NEET

📘 Lecture 3 (Part-2) – Thermodynamics & Thermochemistry Series by Krishna Kumar Sah (ChembyKKSir)

Chemical Bonding Lecture 3 (Part 1) | Exclusive 6 Rules to Draw Covalent Molecules & Ions Structures

Amines Class 12 Lecture2[part-2]| Chemical Reactions of Amines & Aniline| JEE • NEET •| ChemByKKSir