Alkanes
Chapter Name : Hydrocarbons |
Sub Topic Code : 102_11_13_02_10 |
Topic Name : Alkanes |
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Sub Topic Name : Controlled Oxidation |
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Introduction
Alkanes consist only of hydrogen and carbon atoms, all bonds are single bonds, and the carbon atoms are not joined in cyclic structures but instead form an open chain. They have the general chemical formula CnH2n+2.
Pre-Requisites:
Alkanes
Activity:
Crude oil.
Real Life Question:
What is Controlled Oxidation?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Controlled Oxidation | A common form of chemical reaction which is the combining of oxygen with various elements and compounds. The corrosion of metals is a form of oxidation; rust on iron for example is iron oxide. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| liquefied petroleum gas | A flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. |
Real life uses :
They are the main components of natural gas; they are normally stored as gases under pressure.
Places to visit :
Chemistry laboratory.
Practical examples around us
| Examples | Explainations |
|---|---|
| Butane | Butane is an organic compound with the formula C4H10 that is an alkane with four carbon atoms. Butane is a gas at room temperature and atmospheric pressure. |
What you learn in Theory:
Alkanes burn readily with non-luminous flame in presence of air or oxygen to give CO2 & water along with evolution of heat. Therefore alkanes are used as fuels.
What you learn in Practice:
Alkanes are found in animal products, although they are less important than unsaturated hydrocarbons.