LT 9 Alkanes_Alkene

What is the general formula for alkanes?

• CnH2n+2

• CnH2n

• CnH2n-2

• CnH2n+1

Which of the following is an example of an alkane with n = 4?

• C4H12

• C4H8

• C4H10

• C4H14

What is the name of the alkane with the molecular formula C3H8?

• Butane

• Ethane

• Propane

• Methane

What type of reaction do alkanes undergo when reacting with halogens?

• Addition reaction

• Substitution reaction

• Combustion reaction

• Cracking reaction

What is the general formula for alkenes?

• CnH2n

• CnH2n-2

• CnH2n+2

• CnH2n+1

Which of the following is an example of an alkene with n = 5?

• C5H16

• C5H14

• C5H12

• C5H10

What is the name of the alkene with the molecular formula C2H4?

• Propene

• Pentene

• Butene

• Ethene

What is the most characteristic reaction of alkenes involving the carbon-carbon double bond?

• Cracking reaction

• Substitution reaction

• Combustion reaction

• Addition reaction

What type of isomerism is exhibited by alkenes with 4 or more carbon atoms?

• Positional isomerism

• Optical isomerism

• Structural isomerism

• Geometric isomerism

In geometric isomerism of alkenes, what is the term for the configuration where the two hydrogen atoms are on opposite sides of the double bond?

• Trans isomer

• E-Z isomer

• Cis isomer

• Syn isomer