AS Chemistry | Class 24 | Organic Chemistry 1 | SP3 Hyberdization | Shape of Molecules 0323 509 4443
Book a FREE trial lesson by joining our Whatsapp Community https://chat.whatsapp.com/CWSRaMi4i3w... or connect on +923235094443 Visit our website for video courses and other resources: https://megalecture.com/courses/ AS Chemistry | Live Class 24 | Organic Chemistry 1 | sp³ Hybridisation & Shapes of Molecules Welcome to AS Chemistry Live Class 24! In this session, we begin Organic Chemistry (Part 1) and focus on sp³ hybridisation and the shapes of molecules, which form the foundation for understanding structure, bonding, and reactivity in AS Level Chemistry. 1️⃣ What is Hybridisation? – Hybridisation is the mixing of atomic orbitals in an atom to form new hybrid orbitals for bonding. This section explains why hybridisation occurs and how it helps explain molecular shape more accurately than simple atomic orbitals. 2️⃣ sp³ Hybridisation Explained – Students learn how one s orbital and three p orbitals mix to form four equivalent sp³ hybrid orbitals. The tetrahedral arrangement of these orbitals is explained clearly, with reference to common organic molecules such as alkanes. 3️⃣ Tetrahedral Shape and Bond Angles – This point explains why sp³-hybridised molecules have a tetrahedral shape with a bond angle of approximately 109.5°. Students learn how this geometry minimises electron pair repulsion, a key explanation required in exams. 4️⃣ Effect of Lone Pairs on Shape – When lone pairs are present, they repel more strongly than bond pairs. This section explains how lone pairs reduce bond angles, using examples like ammonia and water to help students understand real molecular shapes. 5️⃣ Drawing Molecular Shapes and Diagrams – Students practise drawing clear diagrams showing bond pairs, lone pairs, and three-dimensional shapes using wedges and dashed bonds. Correct diagrams help secure easy marks in structured questions. 6️⃣ Exam Practice & Common Mistakes – Past paper questions are discussed, highlighting frequent errors such as incorrect bond angles, missing lone pairs, and confusion between shape and electron arrangement. Examiner tips are shared for full-mark answers. 📲 Get class notes, solved examples & recordings: WhatsApp: 0323 509 4443 🌐 Visit: www.megalecture.com If you found this class helpful, please LIKE, SUBSCRIBE, and hit the BELL ICON so you don’t miss upcoming AS Organic Chemistry lessons! #ASChemistry #OrganicChemistry #Hybridisation #sp3Hybridisation #MolecularShape #ChemistryRevision #MegaLecture
