S-Block Elements Complete Chapter One Shot | Part-3 | Lab Assistant Chemistry | Mahaveer Galwa Sir

📌Topic: S-Block Elements Complete Chapter One Shot Full Revision (Lab Assistant Exam Special) 📚Teacher: Mahaveer Galwa Sir Welcome to Bright Star Academy YouTube channel. In today's important session, we're covering the entire chapter of S-Block Elements in a single video. This video is especially useful for the Lab Assistant Exam, SSC, Railway, Police, Army, Nursing, Paramedical, ITI, NEET, JEE, and all State Exams. In this one-shot class, you'll understand every topic of Alkali Metals Group 1 and Alkaline Earth Metals Group 2 that is frequently asked in the exam. ✅ Most Expected Questions ✅ Previous Year MCQs ✅ Short Tricks & Important Points ✅ Chemical Properties, Uses & Reactions ✅ S-Block All Concepts from Basic to Advanced --- 🔥 What are S-Block Elements? Group 1 and group 2 elements of the periodic table are called S-Block because their outermost electron is in the s-subshell. These elements are reactive, soft metals, and electropositive in nature. --- 📌 Group-1 : Alkali Metals List Atomic Number Element Name Symbol 3 Lithium Li 11 Sodium Na 19 Potassium K 37 Rubidium Rb 55 Cesium Cs 87 Francium Fr ✅ Most reactive – Francium & Cesium ✅ Most important in life – Lithium & Sodium ✅ Biological importance – K and Na ions --- 📌 Group-2 : Alkaline Earth Metals List Atomic Number Element Name Symbol 4 Beryllium Be 12 Magnesium Mg 20 Calcium Ca 38 Strontium Sr 56 Barium Ba 88 Radium Ra ✅ Teeth-Bone formation – Calcium & Magnesium ✅ Fireworks & X-Ray contrast agent – ​​Strontium & Barium --- ✅ Important Properties (Exam Special) ✔ Atomic Radius trend ✔ Ionization Enthalpy ✔ Flame Test Colors ✔ Solubility Trends ✔ Oxides, Hydroxides Reactivity ✔ Compounds like NaCl, KCl, CaO, CaCO₃, MgSO₄ Example: 🔥 Potassium flame color — Violet 🔥 Sodium flame color — Yellow 🔥 Calcium flame color — Brick Red 🔥 Barium flame color — Apple Green --- ✅ Essential Compounds & Uses Compound Group Use NaCl G1 Common salt CaCO₃ G2 Cement, chalk MgSO₄ G2 Medicines NaOH G1 Soap industry Ca(OH)₂ G2 Whitewashing --- 📌Why This Session is Important for Lab Assistant Exam? In Lab Assistant Chemistry, the S-Block chapter is worth 3-6 marks. Similar questions are presented in PyQ every year. So, in this video, we complete the revision from zero to hero. ,🧪 PyQ Sample Questions 1️⃣ Sodium's flame color? ✔ Yellow 2️⃣ Calcium is an element in which group? ✔ Group 2 (Alkaline Earth Metal) 3️⃣ Lithium's atomic number? ✔ 3 ✅ Other important MCQs are found in video --- 📌 What You Will Learn in This Lecture ✅ S-block Intro ✅ General Properties ✅ Trends in Physical & Chemical Properties ✅ Oxides, Hydroxides, Salts ✅ Flame Test, Biological Importance ✅ Previous Year Questions ✅ Trick to memorize periodic trends --- 🏆 Who Should Watch This Video? ✔ Lab Assistant Aspirants ✔ Students of Class 11th–12th ✔ Polytechnic/Paramedical Students ✔ All Competitive Exam Students --- 📌Our Goal It is the mission of Bright Star Academy to make your selection a reality. Subscribe to the channel for regular classes, study material & test series ✅ --- 📞Contact for Paid Courses 📌Lab Assistant Full Course 📌 Rajasthan Competition Classes --- ▶ Must Watch Playlist 📌Lab Assistant Chemistry 📌 Biology MCQ 📌Physics Complete Revision 📌 General Science Rapid Fire --- ✅Social Media Connect 📌 Instagram: @brightstaracademy (update user) 📌 Telegram Channel: Join for PDFs & Notes --- 🙏Thanks LIKE this video 👍 SHARE ↗ COMMENT 💬 aur SUBSCRIBE ✅ zaruri karein! Your support motivates us to create better content ❤️ --- ✅High-Ranking SEO Tags Lab Assistant S block elements S block elements one shot Hindi Group 1 and Group 2 chemistry full chapter S block elements full revision Alkali metals alkaline earth metals class S block questions Lab Assistant Lab Assistant chemistry classes Periodic table S block Hindi Science one shot bright star academy calcium magnesium chemistry lecture --- ✅Best Hashtags #SBlockElements #LabAssistant #ChemistryOneShot #Group1 #Group2 #AlkaliMetals #AlkalineEarthMetals #PeriodicTable #ScienceHindi #ChemistryHindi #BrightStarAcademy #CompetitiveExams #PYQ #GeneralScience #FullChapterRevision 📍Follow Us On: App ''Bright Star Academy'' :-- https://play.google.com/store/apps/de... Instagram :-- https://www.instagram.com/bright__sta...