Organic Chemistry Intro_I

What is the general formula for alkanes?

Which of the following is a characteristic of unsaturated hydrocarbons?

• They contain only single bonds.

• They contain double or triple bonds.

• They are always cyclic.

• They have the maximum number of hydrogen atoms.

Identify the type of isomerism exhibited by 2-butene.

• Structural isomerism

• Geometric isomerism

• Optical isomerism

• Chain isomerism

Which of the following compounds is an alkyne?

• Ethene

• Propane

• Butyne

• Cyclohexane

• 1

• 2

• 3

• 4

Which of the following is a saturated hydrocarbon?

• Ethylene

• Acetylene

• Cyclopropane

• Benzene

Explain why alkenes are more reactive than alkanes.

• Alkenes have a higher molecular weight.

• Alkenes contain a double bond which is more reactive.

• Alkenes have more hydrogen atoms.

• Alkenes are more soluble in water.

Which of the following statements is true about stereoisomers?

• They have different molecular formulas.

• They have the same connectivity of atoms but differ in spatial arrangement.

• They are always optically active.

• They have different functional groups.

Predict the product of the hydrogenation of ethyne.

• Ethane

• Ethene

• Propane

• Butane

Which of the following is a cyclic hydrocarbon?

• Propene

• Cyclobutane

• Butyne

• Hexane