Chemical Reactions and Equations Class 10 | Revision + 10 Short Tricks in 25 Min | CBSE 2026-27

Revise the complete Class 10 Science Chapter 1 – Chemical Reactions and Equations in just 25 minutes, as per the latest CBSE syllabus 2026-27. Clear whiteboard explanations with every NCERT activity and figure, all in-text questions and exercises solved, and 10 verified short tricks for MCQs. In this video: ✅ Chemical reactions and their signs (Activities 1.1–1.3) ✅ Word equations, skeletal equations, balancing by the hit-and-trial method, state symbols and conditions ✅ Combination reactions, whitewashing, exothermic reactions and respiration ✅ Decomposition by heat, electricity and light; endothermic reactions ✅ Displacement and double displacement (precipitation) reactions ✅ Oxidation, reduction and redox reactions; corrosion and rancidity ✅ NCERT in-text questions + exercises 1–20 solved ✅ 10 short tricks + common mistakes + quick quiz ⏱️ Chapters 0:00 Introduction 0:18 What we'll revise (syllabus 2026-27) 0:46 Chemical reactions; Activity 1.1 burning magnesium (NCERT) 1:35 Activities 1.2, 1.3; signs of a chemical reaction + Trick 1 2:22 Word equations, chemical equations, skeletal equations 3:07 Law of conservation of mass; balanced equations 3:51 Balancing step by step (Steps I–III) + Trick 2 4:47 Hit-and-trial method (Steps IV–VI) 5:25 Physical states (Step VII) and reaction conditions 6:11 NCERT in-text questions: balanced equations + Tricks 3, 4 7:12 Combination reaction: Activity 1.4, quick lime and water 7:56 Do you know? Whitewashing (NCERT) 8:30 Exothermic reactions: burning, respiration, compost (NCERT) 9:17 Decomposition reaction: Activity 1.5, heating ferrous sulphate 10:02 Thermal decomposition: limestone, lead nitrate (Activity 1.6) + Trick 5 10:49 Electrolysis of water: Activity 1.7 (NCERT) 11:41 Decomposition by light: silver chloride (Activity 1.8) + Trick 6 12:22 Endothermic reactions; group activity + Trick 7 13:08 Displacement reaction: Activity 1.9, iron nails + Trick 8 13:58 Double displacement & precipitation: Activity 1.10 + Trick 9 15:01 Oxidation and reduction: Activity 1.11, heating copper 15:45 Redox reactions + Trick 10 16:37 Effects of oxidation: corrosion and rancidity 17:21 NCERT in-text questions (oxidised & reduced) 18:05 NCERT exercises 1–4 18:58 NCERT exercises 5–6 (balancing) 19:50 NCERT exercises 7–8 (types of reactions) 20:37 NCERT exercises 9–12 21:21 NCERT exercises 13–16 22:13 NCERT exercises 17–20 22:48 10 short tricks – one-page summary 23:11 Mistakes to avoid 23:40 Quick quiz (4 questions) 24:35 Summary & contact 🏫 Guidepoint Academy – coaching for Grades 8–12 (Maths, Science, Commerce) 📍 Office No. 203, Omran Tower, Al Qasimia, Sharjah, UAE 📞 Call / WhatsApp: 056 690 0311 | 050 512 2641 👍 Like, share with your friends and subscribe for more quick revision videos! #ChemicalReactionsAndEquations #Class10Science #BalancingEquations #CBSE #GuidepointAcademy #Sharjah