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Alkenes

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Estimated time: 6 minutes
  • Definition: Alkenes
Maharashtra State Board: Class 12
CISCE: Class 10

Definition: Alkenes

Alkenes are unsaturated hydrocarbons containing at least one C=C double bond.

Maharashtra State Board: Class 12

Key Points: Alkenes

  • General formula: CₙH₂ₙ (where n = 2, 3, 4…)
  • Suffix for IUPAC naming: –ene
  • e.g., Ethene (CH₂=CH₂), Propene (CH₃–CH=CH₂)
  • The double bond consists of one σ bond and one π bond

Related QuestionsVIEW ALL [52]

Read the following reaction and answer the questions given below.

\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\\phantom{...........................}|\\\ce{CH3 - C = CH2 + HBr ->[benzoyl][peroxide] CH3 - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH3}\phantom{.................................}\end{array}\]

  1. Write the IUPAC name of the product.
  2. State the rule that governs the formation of this product.

Give IUPAC name for the following compound.

\[\ce{(CH3)3 C – C ≡ C – CH (CH3)2}\]

Write the balanced chemical reaction for preparation of ethane from Ethyl magnesium iodide.

Give IUPAC name for the following compound.

\[\ce{CH3 –CH=CH–CH=CH–C≡C–CH3}\]

Write the reaction to convert propene to n-propyl alcohol.

What is the action of following on but-2-ene?

dil. alkaline KMnO4

Acetone and acetaldehyde are the ozonolysis products of an alkene. Write the structural formula of an alkene and give IUPAC name of it.

Acetone and acetaldehyde are the ozonolysis products of an alkene. Write the structural formula of an alkene and give the IUPAC name of it.

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