Podcast
Questions and Answers
What are Alkenes and Alkynes called?
What are Alkenes and Alkynes called?
- Aromatic compounds
- Unsaturated compounds (correct)
- Saturated compounds
- Alkanes
Some Alkenes have cis-trans isomers because the carbon atoms in the double bond can rotate.
Some Alkenes have cis-trans isomers because the carbon atoms in the double bond can rotate.
False (B)
What kind of arrangement does Alkenes have?
What kind of arrangement does Alkenes have?
Trigonal planar arrangement
What is the simplest alkene?
What is the simplest alkene?
What is the common name for Ethene (alkene)?
What is the common name for Ethene (alkene)?
What is the common name for Ethyne (alkyne)?
What is the common name for Ethyne (alkyne)?
What kind of arrangement do Alkynes have?
What kind of arrangement do Alkynes have?
What are Cis-Trans Isomers?
What are Cis-Trans Isomers?
Why do Cis-Trans isomers occur?
Why do Cis-Trans isomers occur?
Flashcards
Alkenes and Alkynes are called?
Alkenes and Alkynes are called?
Unsaturated compounds
Alkenes rotation around double bond?
Alkenes rotation around double bond?
False
Alkene arrangement?
Alkene arrangement?
Trigonal planar arrangement
Simplest alkene?
Simplest alkene?
Ethene
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Ethene common name?
Ethene common name?
Ethylene
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Ethyne common name?
Ethyne common name?
Acetylene
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Alkyne arrangement?
Alkyne arrangement?
Linear arrangement
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Cis-Trans Isomers?
Cis-Trans Isomers?
Same formula, different properties
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Why Cis-Trans isomers?
Why Cis-Trans isomers?
Double bonds are rigid and cannot rotate
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Unsaturated Compounds
- Alkenes and alkynes are categorized as unsaturated compounds due to having fewer hydrogen atoms compared to alkanes.
Isomerism in Alkenes
- Some alkenes exhibit cis-trans isomerism because the carbon atoms involved in the double bond are unable to rotate freely.
Molecular Arrangement
- Alkenes possess a trigonal planar arrangement around their double-bonded carbon atoms, allowing for specific spatial configurations.
Simplest Alkene
- Ethene, also known as ethylene, is recognized as the simplest alkene.
Common Names
- Ethene is commonly referred to as ethylene.
- Ethyne is widely known by the common name acetylene.
Arrangement in Alkynes
- Alkynes have a linear molecular arrangement due to the presence of a triple bond formed by the sharing of three pairs of valence electrons between two carbon atoms.
Characteristics of Cis-Trans Isomers
- Cis-trans isomers share the same molecular formula but differ in their physical and chemical properties, leading to distinct behaviors.
Rigid Nature of Double Bonds
- The occurrence of cis-trans isomers in alkenes is attributed to the rigidity of double bonds, which restrict their ability to rotate.
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