Y12 Chem L11 Alkanes and alkenes

Which substance could not be produced in the following nucleophilic substitution

C₂H₆ + Br₂ →

• C₂H₅Br

• H₂

• C₄H₁₀

• C₂H₄Br₂

Which molecules are involved in the initiation step of the reaction between methane and chlorine?

• Methane

• Chlorine

• Methyl free radicals

• Chlorine free radicals

What colour change would you see in the following reaction

CH₃CH=CH₂ + KMNO₄/H₂SO₄ →

• Purple to colourless

• Orange to colourless

• Colourless to purple

• Colourless to orange

How many sigma and pi bonds are there in a molecule of ethene?

• 6 sigma

• 4 sigma and 1 pi

• 4 sigma and 2 pi

• 5 sigma and 1 pi

Which of the following is least likely to catalyze the reaction between ethene and hydrogen?

• Nickel

• Palladium

• Magnesium

• Platinum

What is the product of the reaction between but-2-ene and chlorine

• 1-chlorobutane

• 2-chlorobutane

• 1,2-dichlorobutane

• 2,3-dichlorobutane

What is the product of the reaction between ethene and hydrogen bromide?

• bromoethene

• bromoethane

• 1,2-dibromoethene

• 1,2-dibromoethane

What is the major product in the reaction between propene and bromine water?

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