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CBSEScience (English Medium) Class 11
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Chemical Properties of Alkenes

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Topics

  • Key Points: Chemical Properties of Alkenes
CISCE: Class 10

Key Points: Chemical Properties of Alkenes

  • Ethene reacts with hydrogen, halogens, and acids to form saturated compounds like ethane and alcohols.
  • It forms polythene through polymerisation.
  • Burns with a sooty flame and gives ethylene glycol with KMnO₄.

Related QuestionsVIEW ALL [21]

Arrange the following hydrogen halides in order of their decreasing reactivity with propene.

Which of the following alkenes on ozonolysis give a mixture of ketones only?

(i) CH3 – CH = CH – CH3
(ii) \[\begin{array}{cc}
\ce{CH3 - C - CH = CH2}\\
|\phantom{.......}\\
\ce{CH3}\phantom{....}
\end{array}\]
(iii)
(iv) \[\begin{array}{cc}
\phantom{...................}\ce{CH3}\\
\phantom{..............}/\\
\ce{(CH3)2 C = C}\\
\phantom{..............}\backslash\\
\phantom{...................}\ce{CH3}
\end{array}\]

An alkene ‘A’ contains three C – C, eight C – H σ bonds and one C – C π bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of ‘A’.

3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is ______.

An alkene ‘A’ on ozonolysis gives a mixture of ethanal and pentan-3-one. Write structure and IUPAC name of ‘A’.

An alkene 'X' on ozonolysis produces two moles of isovaleraldehyde. Predict the IUPAC name of the alkene. 

Write a chemical equation for combustion reaction of the following hydrocarbon: 

Pentene 

Select schemes A, B, C out of

(I) acid catalysed hydration

(II) HBO

(III) oxymercuration-demercuration

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