S Block Elements Class 11 Chemistry | Full Chapter in 25 Mins | WBCHSE Sem 1 2025

Описание: S-Block Elements Class 11 Chemistry | WBCHSE Sem 1 2025–26 | Alkali & Alkaline Earth Metals Full Chapter
🧪 Master the S-Block Elements in just 25 minutes! This exam-focused Class 11 Chemistry crash course (Bengali + English mix) is perfect for WBCHSE Sem 1 2025–26, and equally useful for CBSE & ISC. Covers Group 1 (Alkali Metals) & Group 2 (Alkaline Earth Metals) — properties, trends, reactions, compounds, flame tests, anomalies, and scoring tricks. Learn fast, clear, and in Bangla for last-minute revision.

📚 What You’ll Learn in This Video:
✅ Position of S-Block, Group 1 vs Group 2 basics
✅ Periodic trends: atomic radius, ionization enthalpy, hydration enthalpy, metallic character
✅ Reactivity & reactions with H₂O, O₂, N₂, H₂, halogens
✅ Key compounds & uses: Na₂CO₃, NaHCO₃, NaOH, KNO₃, CaCO₃, CaO, Ca(OH)₂, Plaster of Paris, MgO, Mg(OH)₂
✅ Solubility rules, lattice energy vs hydration energy
✅ Flame test colours for alkali & alkaline earth metals
✅ Anomalous behaviour & diagonal relationship (Li–Mg, Be–Al)
✅ Exam hacks, memory tricks & scoring points

🎯 Who Should Watch:
📌 WBCHSE Class 11 Chemistry (Sem 1)
📌 CBSE Class 11 Chemistry S-Block
📌 ISC Board Chemistry
📌 NEET / CUET / JEE basic inorganic foundation

👨‍🏫 Presented By:
Sri Pulak Kr. Hazra
(M.Sc, B.Ed – Ex-Chemistry Faculty, Adamas University)

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📞 Call: 7044900703

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