Alkenes and Alkynes

Look at the structure of the following cycloalkene. What of the options would best describe the numbering of the carbon chain?

• Priority on the substitient as carbon 1

• Priority on the double bond as carbons 1 and 2

• Both the double bond and the substituent have the same priority

What would be the IUPAC name of the following structure?

• 1,4-dimethyl-2-butene

• 2,3-diethyl-3-butyne

• dimethylhexene

• 2,3-dimethyl-2-butene

What would be the correct structure for the 2,5-dimethyl-2-hexene

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The general formula of an alkyne is ________, and the molecular formula of an alkyne with 6 carbon atoms would be _________

Which of the following statements is true regarding the reactivity of alkynes?

• Alkynes are less reactive than alkenes.

• Alkynes can undergo hydrogenation to form alkanes.

• Alkynes do not participate in addition reactions.

• Alkynes are more stable than alkenes.

Which of the following compounds is an example of a symmetrical alkyne?

• 1-butyne

• 2-butyne

• 3-pentyne

• 1-heptyne

Draw the condensed structural formula for the product of the following reaction:

• 2-propyl-2-pentene

• 2-methylbutane

• 3-ethylpentene

• 2-methylpentane

When 2,3-dimethyl-2-butene is reacted with water in the presence of dilute acid, what is the structure of the product obtained?

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