Question
Download Solution PDFAlkenes, unsaturated hydrocarbons containing a double bond between two carbon atoms, have a general formula, which is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is CnH2n.
- Alkenes, unsaturated hydrocarbons containing a double bond between two carbon atoms, have a general formula, is CnH2n.
Key Points
- Alkenes contain carbon-carbon double bonds and are unsaturated hydrocarbons with the molecular formula is CnH2n.
- This is also the same molecular formula as cycloalkanes.
Additional Information
- General Properties of Alkenes:
- Physical state: The members containing two or four carbon atoms are gases, five to seventeen, liquids, eighteen onwards, solids at room temperature and they burn in air with a luminous smoky flame.
- Density: Alkenes are lighter than water.
- Solubility: Alkenes are insoluble in water and soluble in organic solvents such as benzene etc.
- Boiling point: The boiling points of alkenes show a gradual increase with an increase in the molecular mass or chain length.
Important Points
| Formula | Details |
| CnH2n+2 |
|
| CnH2n-2 |
|
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