What is a characteristic property of alkynes?

• Presence of a carbon-carbon triple bond

• Presence of a carbon-carbon double bond

• Presence of a carbon-carbon single bond

• Presence of a hydroxyl group

How do alkynes differ from alkenes?

• Alkynes are saturated; alkenes are unsaturated.

• Alkynes have triple bonds; alkenes have double bonds.

• Alkynes have single bonds; alkenes have triple bonds.

• Alkynes contain only carbon; alkenes contain carbon and oxygen.

What is the general formula for alkynes?

• CnH2n+2

• CnH2n

• CnH2n-1

• CnH2n-2

What type of bond is present in alkynes?

• Single bond

• Double bond

• Quadruple bond

• Triple bond

What is the boiling point trend for alkynes compared to alkanes?

• Alkynes and alkanes have the same boiling points.

• Alkynes have lower boiling points than alkanes.

• Alkynes have significantly lower boiling points than alkanes.

• Alkynes have higher boiling points than alkanes.

What is a common reaction that alkynes undergo?

• Elimination reactions

• Substitution reactions

• Addition reactions

• Oxidation reactions

What is the product of the hydrogenation of an alkyne?

• Alkane

• Alkene

• Diene

• Cycloalkane

What is the significance of the triple bond in alkynes?

• The triple bond in alkynes decreases reactivity and creates a branched structure.

• The triple bond in alkynes has no effect on their reactivity or structure.

• The triple bond in alkynes increases reactivity and defines their linear structure.

• The triple bond in alkynes is responsible for their aromatic properties.

What are some common uses of alkynes in industry?

• Ingredient in food flavoring

• Raw material for glass production

• Fuel for internal combustion engines

• Common uses of alkynes in industry include synthesis of pharmaceuticals, agrochemicals, polymers, welding and cutting applications, and as intermediates in organic synthesis.

What is a property of alkanols?

• Alkanols contain carbonyl (C=O) groups.

• Alkanols are saturated hydrocarbons without functional groups.

• Alkanols are primarily composed of aromatic rings.

• Alkanols contain hydroxyl (-OH) groups.