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alkene

Upper-Intermediate (B2)

IPA: //ælˈkiːn//

KK: /ælˈkiːn/

noun
Definition

A type of chemical compound that consists of carbon and hydrogen atoms, characterized by having at least one double bond between carbon atoms. These compounds are part of a larger group of hydrocarbons and are known for being unsaturated.


Example

Ethylene is the simplest alkene, consisting of two carbon atoms connected by a double bond.


Conversation
Sloth A
Have you heard about alkenes in our chemistry class?
Sloth B
Yeah, I think they're those hydrocarbons with double bonds, right?
Sloth A
Exactly! I find it fascinating how they differ from alkanes.
Sloth B
Me too! It's cool to learn about their structures and uses.

Synonyms & Antonyms
Synonyms
olefin
alkyl
hydrocarbon
Antonyms
Root Explanation

Alkene → It is formed from "alkyl" (from Arabic *al-kuḥl*, meaning the kohl or black powder, referring to a class of hydrocarbons) and "-ene" (from Greek *ene*, meaning containing). The word "alkene" refers to a class of hydrocarbons that contain a carbon-carbon double bond.

Memory Tip

Think of 'alkyl' referring to a type of hydrocarbon and '-ene' indicating the presence of a double bond, which helps you remember that alkenes are hydrocarbons with double bonds.

Visually Confused Words
alkylene
palkee
arlene
allene
alkyne
alkine
alkane
lene
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