Year 13 Organic Revision 1

Which one of the following molecules could exist as E-Z isomers?

• CH₃CH=CH₂

• CH₃CH=CHCH₃

• CH₃CH₂CH=CH₂

• (CH₃)₂C=CHCH₃

How many moles of oxygen are required for the complete combustion of one mole of butane?

• 5.5

• 6

• 6.5

• 7

Which one of the following is a propagation step in the mechanism of the reaction between chlorine and methane?

• CH₃˙ + HCl → CH₄ + Cl˙

• CH₄ + Cl˙ → CH₃˙ + HCl

• CH₄ → CH₃˙ + H˙

• CH₃˙ + Cl˙ → CH₃Cl

Which of the following is the name for the mechanism for the reaction between ethane and chlorine?

• electrophilic addition

• free-radical addition

• free-radical substitution

• nucleophilic substitution

Which one of the following is not the correct formula for a radical?

• H•

• Cl•

• CCl₃•

• CH₄•

Which one of the following is removed from bromoethane when it is reacted with ethanolic sodium hydroxide?

• Br₂

• H₂O

• HBr

• NaBr

Which one of the following cannot act as a nucleophile?

• CH₃CH₂NH₂

• CH₄

• CN⁻

• H₂O

Which one of the following statements is not correct about the alcohol shown below? CH3CH2CHOHCH3

• It has the molecular formula C₄H₁₀O

• It is butan-2-ol

• It can be oxidised to an aldehyde

• It is a secondary alcohol

Which statement is true about the reaction between hydrogen bromide and ethene?

• The product is unsaturated.

• The transition state is neutral.

• The product can exist as two different structural isomers.

• The hydrogen bromide splits into two ions.

Which one of the following is a tertiary alcohol?

• 2-methylbutan-1-ol

• 2-methylbutan-2-ol

• 3-methylbutan-1-ol

• 3-methylbutan-2-ol