IGCSE/O-Level Organic Chemistry: Hydrocarbons (Alkanes & Alkenes) Made Easy 2026
Targets: O Level 5070, IGCSE 0620, AQA 7405, Edexcel 9CH0 & 4CH1
Table of Contents
Focus is key. Reset your mind before studying with this mood booster song.
⚠️ The Harsh Truth: YouTube is Hurting Your Grade
Why "Free" Videos Cost You Everything:
You have exams in 2026. You search for "hydrocarbons class 11 notes" or "O Level Chemistry 5070 alkanes alkenes". What do you find?
- Videos made for JEE/NEET (Indian Curriculum) that include advanced reactions not in your O-Level syllabus.
- Videos with lot of advertisement that break your concentration every 3 minutes.
- Content that is not aligned with the 2026 Cambridge Syllabus.
You spend 3 hours filtering through irrelevant content. This strategy will fail you. You need precise, syllabus-aligned content that explains exactly what gives you marks in Paper 1 and Paper 2.
✅ The Solution: Enroll & Master It Now
Instead of gambling with your future, enroll in structured courses designed by Prof. Faisal Janjowa. Logical, fast, and fact-based.
Option 1: The "Organic Specialist" (Master Alkanes to Polymers)
Hydrocarbons are the foundation. If you don't understand Alkanes and Alkenes, you can't do Alcohols or Acids. Master it all here.
🧪 Enroll: Organic Chemistry Crash CourseOption 2: The "Exam Warrior" (20 Mock Exams)
Theory is useless if you can't solve the paper. Get access to 20 Mock Exams of P1. Perfect for O Level Chemistry 5070 students.
📝 Enroll: P1 Past Papers Session (20 Mocks)Option 3: The "Complete Saviour" (Full Syllabus in 8 Hours)
The legendary course that covers the entire syllabus. Perfect for last-minute revision.
🚀 Enroll: Full Syllabus Crash Course (8 Hours)Hydrocarbons: Alkanes vs Alkenes in 2026
A Hydrocarbon is a compound containing only Carbon and Hydrogen atoms. In the 2026 syllabus, you must distinguish between the two main families:
1. Alkanes (Saturated)
General Formula: CnH2n+2
- They contain only single C-C bonds.
- They are generally unreactive but undergo Substitution Reactions with Halogens (e.g., Chlorine) in the presence of UV Light.
- Used primarily as fuels (Combustion).
2. Alkenes (Unsaturated)
General Formula: CnH2n
- They contain at least one double C=C bond.
- They are very reactive and undergo Addition Reactions (e.g., with Hydrogen, Steam, or Bromine).
- Distinction Test: Alkenes turn Bromine Water from Orange/Brown to Colorless. Alkanes do not.
For detailed reaction mechanisms, check our Ultimate Pack Notes: Bonding, Stoichiometry & Organic.
📖 Concise Exam-Centered Definitions
Stop memorizing long paragraphs. Here is what gives you marks in O Level/IGCSE Chemistry Definitions:
Hydrocarbon
A compound containing only Carbon and Hydrogen atoms.
Homologous Series
A family of similar organic compounds with the same general formula, same functional group, and similar chemical properties.
Saturated
A molecule containing only single bonds between carbon atoms (e.g., Alkanes).
Unsaturated
A molecule containing at least one carbon-carbon double bond (e.g., Alkenes).
📥 Ultimate Download Pack: PDF Notes
We have compiled the essential resources. Click to download directly from Google Drive.
Organic Chem
Download PDFMoles
Download PDFChemical Bonding
Download PDFReactions
Download PDFOxygen and Air
Download PDFEnergetics
Download PDFExp. Techniques
Download PDFFormulae
Download PDFMetals
Download PDFRedox
Download PDFStates of Matter
Download PDFPeriodic Table
Download PDFAtoms & Elements
Download PDFAcids & Bases
Download PDFElectrolysis
Download PDFHydrogen/Water
Download PDFNeed the 2026 syllabus guide? Read IGCSE Chemistry 0620 Syllabus for 2026 Onwards.
🎥 Watch: Solved Papers & Tricks
IGCSE 0620 Paper 62 Solved (ATP)
Solved by Prof. Faisal Janjowa for Cambridge Classroom.
O Level 5070 Paper 42 Solved (ATP)
Essential breakdown for Summer 2023 Paper 42.
Cheat Sheet: Cations, Anions & Gas Tests
Identify ions instantly with this cheat sheet.
Periodic Table Song (Groups 1-8 Hack)
❓ FAQs & Reviews
Q: What is the main difference between Alkanes and Alkenes?
Alkanes have only single C-C bonds (Saturated). Alkenes have at least one C=C double bond (Unsaturated) and are more reactive.
Q: How do I test for an Alkene?
Add Bromine water. If the solution turns from Orange/Brown to Colorless, an Alkene is present. Alkanes show no change.
Teacher Profile: Prof. Faisal Janjowa
Known as "The Chemistry Guru", Prof. Faisal specializes in simplifying complex topics like Stoichiometry and Organic Chemistry for O Level and IGCSE students. His methods are purely exam-focused.
⭐⭐⭐⭐⭐ Student Testimonials
"I kept confusing Substitution and Addition reactions. The crash course explained the mechanisms clearly with simple diagrams. Scored an A*!"
"The explanation of Isomerism in Alkanes was brilliant. I finally get it."
🌍 Trending News vs Your Future
The world is distracted. Everyone is searching for the latest score in Sydney Thunder vs Sydney Sixers, checking Petrol Prices (ironic, considering the topic!), or arguing about Racing vs Barcelona. They are glued to the screen for the U19 Cricket World Cup Schedule or the Afghanistan U-19 vs South Africa U-19 match.
Don't be like them. While they worry about David Warner or Mo Salah, you should be mastering Hydrocarbons. Let them check the National Savings 750 Prize Bond Draw or look for PCB.TCS.COM.PK tickets.
Whether it's Princess Leonor, the Joy Awards, or Sameer Ahmed Minhas, none of that helps your O Levels. Forget about Lara Croft Tomb Raider, Android 17, or the Xiaomi Redmi Note 15 Pro+. Focus on your Chemistry grades!
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![🎓 Cambridge Grade Thresholds 2026 – Your Complete Guide to Results Day Results Day is finally here! Whether you're celebrating a well-deserved A* or planning your next steps, Cambridge Classroom has everything you need to understand your grades and prepare for the journey ahead. What Are Grade Thresholds? Grade thresholds (also known as grade boundaries) are the minimum marks required to achieve each grade in a Cambridge examination. After every exam session, Cambridge International publishes official grade threshold tables showing exactly how many raw marks you needed for an A*, A, B, C, and so on. Here's the key thing to understand: grade boundaries change every year. They depend on the difficulty of the papers and how the entire cohort of students performed. A mark that gave you an A* in one session might give you an A in another – and that's completely normal. For example: In the June 2025 session, the A* threshold for O Level Chemistry 5070 was 169 out of 200 marks. That means if you scored 169 or above, you achieved the top grade. Anything below that fell into the A, B, or lower categories. 📥 Download Grade Thresholds for Every Subject – FREE! Cambridge Classroom is proud to offer free PDF downloads of grade threshold tables for all Cambridge IGCSE and O Level subjects. Whether you took: Chemistry (5070 / 0620) Physics (0625) Biology (0610) Mathematics (0580) English (0500) Accounting (0452) Art & Design (0400) or any other Cambridge subject – we have your grade threshold PDF ready for download. 👉 [Download your subject's grade threshold PDF here – completely FREE!] 🎉 To Those Who Achieved Their Goals – CONGRATULATIONS! If you're reading this with the grades you worked so hard for – we are so proud of you! 🎊 Those late-night study sessions, the endless past papers, the moments of doubt, and the moments of breakthrough – it all paid off. You've proven that dedication, smart preparation, and consistent effort lead to success. Your journey doesn't stop here. This is just the beginning of an exciting academic and professional future. Whether you're moving on to A Levels, university applications, or your dream career – carry this confidence with you. 💪 To Those Who Need Improvement – This Is NOT the End If your results weren't what you hoped for, take a deep breath. This is not a reflection of your potential – it's simply a signal that a different approach might be needed. Every successful person has faced setbacks. What matters is what you do next. "Success is not final, failure is not fatal: it is the courage to continue that counts." Here's the good news: Cambridge Classroom has everything you need to turn things around and achieve the grades you're capable of. 📱 Download "Cam Class Pro: Papers & Notes" App – Your Ultimate Study Companion The Cam Class Pro App is the most comprehensive study app available for Cambridge students. Here's what makes it outstanding and unlike any other app on the internet: 🔍 1. Past Papers – The World's Largest Collection Huge collection of past papers – search, download, print, and share easily Write directly on papers within the app – no need for separate apps Auto-check your papers – students can instantly verify their answers Live question-by-question checking to improve learning in real-time All data stored online, not on your device – no memory issues Share papers easily across devices and social apps 📅 2. Timetable – Never Miss a Class Again Add events, lessons, periods with reminders Multiple reminders for a single event – you'll never miss anything Analog and digital clocks with 12h/24h options Week-wise view of all events Share your timetable via WhatsApp, Instagram, Facebook, Twitter, SMS Download and share schedules as PDFs Add beautiful wedges to your home screen for quick views 👨🏫 3. 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Resources – Premium Learning Materials Library of notes, tips, and reading materials Ultra Premium, Ultra Realistic, Full HD simulations – make complex topics easy to understand Top-notch feature not available in any other app 📲 Download Now and Start Your Journey to Better Grades! 👉 Download Cam Class Pro: Papers & Notes from Google Play "In all other apps, there's only one institution option – but in Cam Class Pro, I can add all my institutions. Thanks to Cambridge Classroom!" – A visiting faculty member "The Royal Canvas helped me enormously in online teaching. There's no such app on the internet with these features." – A teacher 🔬 For Chemistry Students – Enroll in the Crash Course! If you're taking O Level Chemistry 5070 or IGCSE Chemistry 0620 and want to guarantee an A*, Cambridge Classroom offers the Ultimate Chemistry Crash Course. Why This Crash Course is Different: 100% Syllabus-Aligned – no wasting time on irrelevant AQA or AP content No Ads, No Distractions – every minute is focused learning Expert Guidance – taught by Prof. Faisal Mehmood Janjowa (The Chemistry Guru) with 15+ years of experience and 1000+ solved past papers Live Classes – interactive, engaging, and exam-centered Proven Results – 95% A/A success rate* – students hit the June 2025 A* threshold of 169/200 easily Complete Syllabus in 8 Hours – ideal for late starters and re-sitters Course Structure: Week 1: Core Principles (Atoms, Elements, Stoichiometry) Week 2: Energetics & Reaction Rates Week 3: Acids, Bases, Salts & Qualitative Analysis Week 4: Intensive Organic Chemistry Week 5: Past Paper Solving (P1 & P2) Week 6: ATP Masterclass & Mock Exams "I jumped from a C to an A in 6 weeks! Prof. Faisal's live classes are incredible."* – Aisha, O Level Student "The P1 Past Papers session is a lifesaver. The logic used to explain MCQs is exactly what Cambridge requires. Best investment ever." – Omar, IGCSE 0620 Student 👉 Enroll in the Chemistry Crash Course 5070 & 0620 Now 📊 What Do the Grade Thresholds Mean for You? Grade Typical Range What It Means A* 90–100% Exceptional performance – minimal errors A 80–89% Strong mastery of all topics B 70–79% Good understanding with some gaps C 60–69% Satisfactory achievement D 50–59% Basic understanding E 40–49% Elementary knowledge Note: These percentages are indicative only. Actual thresholds vary by subject and session. Always check the official threshold PDF for your specific subject and exam series. 🚀 Your Next Steps: ✅ If you're happy with your results: Confirm your next steps – college, sixth form, or university applications Download your grade threshold PDF for reference Share your success with friends and family 🔄 If you need to improve: Download Cam Class Pro App – start practicing with past papers today Enroll in the Chemistry Crash Course (if you're a chemistry student) Set a study schedule using the app's timetable feature Track your progress with analytics and grading tools 📝 For everyone: Bookmark Cambridge Classroom for all your study resources Share this guide with fellow students Subscribe for updates on new resources and courses 🌟 Why Cambridge Classroom? Cambridge Classroom is the #1 destination for Cambridge students worldwide because we offer: FREE grade threshold PDFs for all subjects The most comprehensive past papers library The Cam Class Pro App – the only all-in-one study app with features no other app has Expert-led crash courses with proven 95% A/A* success rates Ultra Premium resources including Full HD simulations and Royal Canvas 📌 Quick Links: 📱 Download Cam Class Pro App: Google Play Link 🔬 Chemistry Crash Course: Enroll Now 📥 Grade Thresholds PDFs: [Download Here – Coming Soon!] 🌐 Cambridge Classroom: www.CambridgeClassroom.com 💬 Final Words Results Day is just one day. Your potential is lifelong. Whether you're celebrating or planning your comeback, Cambridge Classroom is here to support you every step of the way. Download the app, enroll in the course, and take control of your academic future today. You've got this. We've got your back. 💪 Share this post with fellow Cambridge students! Let's help everyone achieve their best grades. #CambridgeResults #IGCSEResults #OLevelResults #GradeThresholds #CambridgeClassroom #CamClassPro #ChemistryCrashCourse #ResultsDay2026](https://i0.wp.com/cambridgeclassroom.com/wp-content/uploads/2026/08/grade-thresholds-for-may-june-2026.jpg?resize=150%2C150&ssl=1)
