Reactions of Alkane | Lecture 5|Chapter 11 |9th class Chemistry | PTCB, new syllabus 2025 скачать в хорошем качестве

Reactions of Alkane | Lecture 5|Chapter 11 |9th class Chemistry | PTCB, new syllabus 2025

In this lecture of Class 9 Chemistry (Chapter 11: Hydrocarbons), we explain the important reactions of alkanes in detail. Alkanes are saturated hydrocarbons that generally show less reactivity, but under certain conditions, they take part in important chemical reactions. This lecture covers combustion, substitution, halogenation, oxidation, and other reactions of alkanes with examples. 📌 Topics covered in this lecture: 00:00 Introduction to polar & non polar covalent bonding 03:20 Introduction to reactivity of alkanes 6:40 Halogenation of alkanes 8:15 Substitution reaction 11:15 Combustion of alkanes 13:30 Exercise questions given in topic This lecture is explained in simple Urdu/Hindi for Class 9 students so they can easily prepare for board exams, school tests, and entry tests. Understanding the reactions of alkanes is important because these reactions explain their industrial applications and significance in daily life. 🔔 Subscribe for more Class 9 Chemistry lectures, solved MCQs, short questions, and constructed responses.