Exam-Focus Hydrocarbons Best Notes Alkane/Alkene: O Level & IGCSE Free

Prof. Faisal Mehmood Janjowa
January 21, 2026 8:06 am
No Comments

Hydrocarbons Notes (Alkanes + Alkenes) | O Level 5070 & IGCSE 0620 Exam-Focused Guide Hydrocarbons Notes (Alkanes + Alkenes) Complete, […]

Hydrocarbons Notes (Alkanes + Alkenes) | O Level 5070 & IGCSE 0620 Exam-Focused Guide

Hydrocarbons Notes (Alkanes + Alkenes)

Complete, exam-centered hydrocarbons notes designed for O Level Chemistry 5070, Cambridge IGCSE Chemistry 0620, AQA, Oxford AQA and Edexcel.

Just like trending topics such as pak vs eng u19, bbl standings, petrol prices, or racing vs barcelona, hydrocarbons are a high-impact, high-yield chapter that appears every year in exams.

O Level 5070

IGCSE 0620

AQA 7405

Edexcel 4CH1 / 9CH0

What Are Hydrocarbons? (Exam Definition)

Hydrocarbons are organic compounds that contain only carbon and hydrogen atoms. They are the backbone of fuels, plastics, and modern industry — from petrol prices discussions to polymer manufacturing.

Cambridge-friendly definition:
“A hydrocarbon is an organic compound made up of carbon and hydrogen only.”

Before hydrocarbons, students must master fundamentals: Structure of Atom, Mole Concept, and core Chemistry Definitions.

Types of Hydrocarbons (Must-Memorize)

Type	Bonding	Example	General Formula
Alkanes	Single bonds (saturated)	Methane, Ethane	C_nH_2n+2
Alkenes	At least one C=C (unsaturated)	Ethene, Propene	C_nH_2n
Alkynes	C≡C bond	Ethyne	C_nH_2n−2
Aromatic	Benzene ring	Benzene	C₆H₆

Alkanes – Saturated Hydrocarbons

Alkanes are saturated hydrocarbons containing only single bonds. They are obtained from petroleum refining — a topic strongly linked with petrol prices and energy economics.

Key Properties

Low reactivity
Burn with clean flame
Used as fuels (natural gas, LPG)

Important Reactions (Exam-Scoring)

Combustion: Alkane + Oxygen → Carbon dioxide + Water
Substitution: With halogens in sunlight

Alkenes – Unsaturated Hydrocarbons

Alkenes contain a carbon-carbon double bond and are far more reactive. They are the gateway to polymers and plastics.

Key Properties

Decolourise bromine water
Undergo addition reactions
Used to make plastics

Important Reactions

Addition of hydrogen (hydrogenation)
Addition of bromine (test for unsaturation)
Polymerisation

👉 Learn the complete organic flow from alkanes to polymers in the Organic Chemistry Crash Course.

Why Random YouTube Videos Fail Students

Random YouTube	Cambridge Classroom
Not syllabus aligned	100% Cambridge aligned
Incomplete explanations	Alkanes → Alkenes → Polymers flow
Heavy ads & distractions	Exam-focused learning
No past paper strategy	Mark-scheme based training

🎥 Learn Faster with Videos

Mood Booster While Studying

Organic Chemistry Crash Course – 10% OFF

IGCSE 0620 Solved Paper

O Level 5070 Solved Paper

📥 Free Downloadable Notes (PDF)

🚀 Score Higher, Not Harder

Students who follow a structured plan improve by 1–2 grades on average. Stop wasting time and enroll now:

Organic Chemistry Crash Course 20 Mock P1 Exams – O Level 5070 Full Syllabus in 8 Hours

⭐ Student & Teacher Reviews

⭐⭐⭐⭐⭐ “Hydrocarbons finally make sense. I jumped from C to A.” – O Level Student

⭐⭐⭐⭐⭐ “Perfect alignment with Cambridge mark schemes.” – Chemistry Teacher

⭐⭐⭐⭐⭐ “Better than any YouTube playlist.” – IGCSE Candidate

FAQs – Hydrocarbons (Exam Focus)

Are hydrocarbons part of organic chemistry?

Yes. Hydrocarbons form the foundation of organic chemistry.

Which hydrocarbons are saturated?

Alkanes are saturated hydrocarbons.

How many marks do hydrocarbons carry?

Typically 8–15 marks across MCQs and theory papers.

At Cambridge Classroom, we believe every exam is a stepping stone to your dreams. Our platform isn’t just a repository of resources—it’s a dynamic, user-friendly community designed to empower you with every tool you need. Whether you’re decoding the reverse chain rule, conquering GCSE challenges, or diving deep into CAIE and IGCSE subjects, our innovative “Save My Exams” approach (including savemyexams, save my exam, and save my exams biology) is here to transform your study experience.

Explore our intuitive, feature-rich interface and discover a world of expertly curated content:

Comprehensive Courses & Lesson Plans:
• Explore All Courses
• Mastering States of Matter
• Atom Alchemy: Elements, Ions & Bonding
• Stoichiometry Secrets: Moles Made Simple
Extensive Past Papers & Exam Guides:
• Free Download – Past Papers Library
• Physics A Level Past Papers
• Students claimed that they find resources better than papacambridge,examsbuddy, mathsandphysicstutors etc., at Cambridge Classroom
Interactive Tools & Resources:
• O-Level Equivalence Calculator
• QR Code Generator – Free Tool
• Free PDF Viewer & Downloader
User-Centric Navigation & Support:
• Manage your progress with our personalized Dashboard and My Account.
• Connect with us via Contact for any questions or support.
• Seamless shopping experiences through our Shop, Cart, and Checkout pages.
Join Our Growing Community:
• Student Registration – Get Started Today
• Instructor Registration – Share Your Expertise
• Meet our Expert Teachers and connect with peers who share your passion for excellence.

Begin your transformative journey with our powerful guide:
Catalyze Your Preparation for Cambridge Exams

At Cambridge Classroom, every resource is crafted with heart, precision, and the promise of success. Embrace a future where every study session builds confidence, every exam is an opportunity, and every challenge is overcome. Join us today and let your brilliance shine!

Visit Our Home • Learn About Us • Explore Courses • Get Started Now

Prof. Faisal Mehmood Janjowa

All
1-100 number cards pdf
19 mins video
19 minute 34 second long youtube video
19 minute 34 second youtube video
19 minute video
19 minutes in seconds
19 seconds video
19-second video
2 minute 18 second video
34 min video
34 minute video
34 second video
A Level Chemistry 9701
A Level Computer Science 9618 Past Papers
a level equivalence calculator
a level to hssc percentage conversion
AQA 7405
AQA Chemistry 7405
AQA Computer Science 8525 Past Papers
AQA Past Papers
CAIE Chemistry 5070
CAIE Equi Cal
CAIE Equivalence Calculator Free Online Tool
CAIE O-Level Chemistry 5070
calculate a level equivalence
Cambridge A Level Chemistry 9701
Cambridge Equivalence Calculator
Cambridge IGCSE Chemistry 0620
Cambridge IGCSE Past Papers
Cambridge O Level Chemistry 0620
Cambridge O Level Chemistry 5070
can you email a letter to santa
can you mail a letter to santa
can you post a letter to santa
can you send a letter to santa
can you write a letter to santa
candy cane color by number
candy cane coloring book
Chemistry 0620
Chemistry 5070
Chemistry 5070 Syllabus
christmas coloring book
christmas coloring book for kids
christmas coloring book for toddlers
christmas coloring book pages free
christmas coloring book pdf download
christmas coloring book pictures
christmas coloring book printable
christmas coloring book printable pdf
Computer Science 0478
Computer Science 0478 Best Notes
Computer Science 0478 Latest Syllabus
Computer Science 0478 Latest Syllabus & Tips for A*
Computer Science Preparation
convert CAIE grades to percentages
Datesheet O-Level IGCSE A-Level
did you write a letter to santa
do you need a stamp for letter to santa
Download Chemistry Concept Notes PDF (Free) – IGCSE
Edexcel A Level Chemistry 9CHO
Edexcel A Level Chemistry YCH11
Edexcel Chemistry 4CH0
Edexcel Computer Science 1CP2 Past Papers
Edexcel IGCSE Chemistry 4CH1
Edexcel Past Papers
Equivalence Calculator
equivalence calculator o level
Equivalence Calculator online free
equivalence calculator online ibcc percentage calculator
equivalence calculator pakistan
equivalency certificate calculator
Exam Timetable
free printable number cards 1-100 pdf
GCE O Level Chemistry 5070
gingerbread coloring book
gingerbread cookies for christmas
how can i write a letter to santa
how do you mail a letter to santa
how do you send a letter to santa
how long is 19 minutes
how long is a 10 minute time lapse video
how to calculate equivalence for a level
how to color a candy cane
how to do letter to santa
IB Chemistry 521
IB Chemistry 522
IB Computer Science 100132 Past Papers
IB Past Papers
IBCC equivalence calculator
IGCSE 0478 Past Papers IGCSE 0478
IGCSE Chemistry 0620
IGCSE Chemistry 0620 activities
IGCSE Chemistry 0620 free download
IGCSE Chemistry 0620 pastpapers
IGCSE Chemistry 0620 solved papers
IGCSE Chemistry 0620 Syllabus
IGCSE Chemistry 0620 worksheets
IGCSE Computer Science 0478 Past Papers
IGCSE Equivalence Calculator
IGCSE Physics 0625 Best Guide (Notes
Latest Syllabus of Physics 5054
letter to santa
Letter to Santa Activity Bundle | Differentiated Christmas Writing Pages (PreK-2nd)
letter to santa 🎁
letter to 🎅
May-June Datesheet
monster book pdf with page numbers
moster number cards 1-100 book pdf
number cards 1-100 pdf
number cards 1-30 pdf
number cards 1-50 pdf
o and a level equivalence
O Level
O Level Chemistry 0620
O Level Chemistry 0620 free download
O Level Chemistry 0620 pastpapers
O Level Chemistry 0620 solved papers
O Level Chemistry 0620 syllabus
O Level Chemistry 5070
O Level Chemistry 5070 Crash Course
O Level Chemistry 5070 free download
O Level Chemistry 5070 Notes
O Level Chemistry 5070 Pastpapers
O Level Chemistry 5070 solved papers
O Level Chemistry 5070 Syllabus
O Level Computer Science 0478 Crash Course
O Level Computer Science 0478 Notes
O Level Computer Science 0478 Pastpapers
O Level Computer Science 0478 Syllabus
O Level Computer Science 2210 Past Papers
o level equivalence calculator
o level grades to matric ssc percentage conversion
o levels equivalence calculator
O-Level Equivalence in 1 Minute
O-Level Equivalence in 1 minute online tool free
o'level equivalence calculator
Oxford AQA Chemistry 7405
Physics 5054
Physics 5054 Activities
Physics 5054 Lesson Plans
Physics 5054 Past Papers
printable number cards 1-100 pdf
printable number cards 1-1000 pdf
Save My Exams Notes for IGCSE Physics 0625 Free Download - 2025 Edition
Save My Exams Notes for O Level Physics 5054 Free Download - 2025 Edition
The Best Periodic Clock App | The Ultimate Chemistry Clock
Try Our Free Calculator
video 19 minute 34 seconds
what happens to letters mailed to santa
where can i mail a letter to santa
where can i send a letter to santa
where can my child send a letter to santa
where do i send my child's letter to santa
where do i send my letter to santa
where do letter to santa go
where do letters addressed to santa go
where do letters to santa actually go
why did columbus write a letter to luis de santangel
WJEC Chemistry 2410QS
WJEC Computer Science 3460QS Past Papers
WJEC Past Papers
Zone 4 Datesheet
🎁 letter to santa
🎄 letter to santa
🎅 letter to santa

Editable Unit Plan & Lesson Plan for Chemistry CAIE O Level 5070 & IGCSE 0620 with full syllabus coverage, engaging activities, and expert teaching tips.

Electrolysis Notes (O Level, IGCSE, OXFORD, IB, CBC, FBISE, EDEXCEL) – Master It Now in 2025

Chemistry 5070 & 0620 Comprehensive Learning with Students' Presentations, Chemistry 5070 & 0620 Students' Presentations, Chemistry 5070 & 0620 Student Presentation, Chemistry 5070 & 0620 Students, Chemistry 5070 & 0620 Presentations, Chemistry 5070 & 0620 Learning, Chemistry 5070 & 0620 Comprehensive Learning, Chemistry 5070 & Chemistry 0620, Students of Chemistry 5070 & Chemistry 0620, Students of Chemistry 5070, Students of Chemistry 0620

How to Prepare Chemistry 5070 June 2025 Exam to Secure an A*

How to Download Free Physics 5054 Past Papers in Minutes

Unlock Mastery of the CIE Periodic Table for Exam Success

$moles notes chemistry moles notes chemistry form 3 moles notes chemistry moles notes pdf o level chemistry moles notes intro to stoichiometry moles to moles notes igcse chemistry mole notes igcse moles notes a level chemistry moles notes gcse chemistry moles notes moles notes pdf mole concept notes a level pdf notes about moles mole with dots in middle moles with dots in them moles summary notes on mole concept moles notes chemistry mole notes pdf moleskine notes app moles and stoichiometry notes moles and molar mass notes moles and equations notes pdf moles and equations notes what is a moles purpose what are the abc's of moles what is the abcd of moles klb chemistry book 3 notes on moles moles o level notes reading moles on body notes moles and formula mass mole notes mole notes chemistry class 11 mole concept notes moles chemistry notes pdf mole concept notes pdf mole concept notes class 11 pdf mole concept notes class 11 mole concept notes pdf free download mole concept notes jee mole concept notes neet chemistry o levels moles notes moles class 11 notes chemistry form three notes on moles d#m notes mole concept notes esaral moles chemistry notes outline mole på engelsk e notes mortgage moles notes form 3 mole fraction notes mole concept notes for neet pdf mole concept notes for neet mole concept notes for jee mole concept notes form three mole concept notes for iit jee pdf mole concept notes for jee mains mole concept notes formula form 3 moles notes moles form 3 notes pdf moles form three notes mole check acronym f moles moles chemistry gcse notes moles gif intro to stoichiometry moles to grams notes what is g/mole gr a moles g/moles to grams grams to moles notes mole concept notes handwritten significance of moles moles in holes answers h moles formula h-moles formula - the natural moles notes igcse moles igcse notes pdf mole concept notes in hindi mole concept notes in hindi pdf moles in chemistry notes i mole mole concept notes jee pdf mole concept notes jee mains mole concept notes jee advanced moles joke j to moles j-notes moles beginning with k kl moles moles notes o level mole concept notes learn cbse moles chemistry o level notes moles o'levels notes l mole = moles in my signature is m moles does m mean moles does m stand for moles mole concept notes ncert n moles mole concept notes o level pdf notes on moles form 3 notes on moles notes on moles chemistry o level moles notes chemistry notes on moles form 3 chemistry notes on moles short notes on moles moles notes pmt mole concept notes pdf jee mole concept notes pdf form 3 mole concept notes pdf download mole concept notes pdf chemistry quizlet moles moles revision notes mole ratio notes mole concept notes reddit mole shapes to be concerned about moles review moles review sheet are moles in decline are moles always circular are moles raised or flat do moles serve a purpose what kind of moles should you worry about are moles normal are moles nocturnal are mortgage notes notarized are moles neoplasm moles short notes moleskine notes mole concept notes self study mole concept notes scribd suspicious moles on arm types of moles to get checked out t moles the mole notes pdf mole concept notes unacademy mole money mole problems v moles moles x molar mass how many decimal places for moles moles number mole concept notes 11th moles explained moles unit symbol 1 mole number 2 moles of no2 2 moles chemistry 2 moles of n moles chemistry form 3 notes 3 moles on chest moles you should be worried about moles i should be concerned about mole with 3 colors 3 moles chemistry 3 moles of nitrogen 3 moles = molecules 3 moles 4 moles number 4 moles chemistry 4 moles of nitrogen 4 moles in scientific notation 4 moles of naoh 5 moles 5 moles of na 5 moles of sodium 5 moles of nacl 5 moles to molecules 6 moles 6 moles of carbon 7 moles to grams moles 7 7 moles dinner 8 moles 8 moles of sodium chloride 8 moles to molecules 8 moles to grams 8 moles of oxygen 9 moles to molecules 9 moles to grams moles notes are moles normal are moles nocturnal are mortgage notes notarized are moles neoplasm can moles not be round can moles on nose be removed can moles be non cancerous can moles not have color can moles.see do moles disappear on their own do moles normally grow do moles naturally go away do moles need to be removed do moles disappear do moles normally get bigger does moles go away does moles come off does moles mean cancer does moles come and go does moles stand for molecules had mole removed now itchy had mole removed now infected had mole removed and it hurts have moles removed have lots of moles how moles work is moles number of molecules is moles cancerous is moles mass is moles molecules is moles capitalized should moles be removed should moles be killed should moles be black should moles peel should moles be hard was the mole removed from netflix what moles mean what moles are normal what moles should be removed what is a mole notes when moles should be checked when moles are concerning when moles appear out of nowhere when moles need to be checked when moles bleed where moles live where moles come from where to find moles where do moles.live which moles should be removed which moles are bad which moles are cancerous which moles to worry about which mole map is correct who removes moles who removes moles from your face why moles form why moles appear why is moles important in chemistry why use moles instead of mass will moles leave my yard will moles ever go away will moles go away will moles leave on their own will moles eventually leave your yard what moles should you worry about what should moles not look like what does moles not like moles notes notes about moles notes on mole concept significance of moles what is the history of mole mole concept notes for neet pdf mole concept notes for neet mole concept notes for jee mole concept notes for iit jee pdf mole concept notes for jee mains mole concept notes in hindi mole concept notes in hindi pdf mole with dots in middle moles with dots in them moles in my signature notes of moles notes on moles form 3 notes on moles notes on moles chemistry moles notes moles notes form 3 moles notes chemistry moles chemistry notes mole notebook moles nocturnal moles nose coles notes coles notes meaning coles notes vs cliff notes coles notes version coles notes online moles o level notes smiles notes$