AS Organic Chemistry

What is the name of this compound?

• ethanol

• ethanal

• ethanone

• methanal

What is the name of this compound?

• propan-2-al

• propanane

• propanone

• propanal

Which compound is a structural isomer of Z-but-2-ene?

• butane

• E-but-2-ene

• cyclobutane

• methylbut-2-ene

Which equation is a propagation step in the conversion of trichloromethane into tetrachloromethane by reaction with chlorine in the presence of ultraviolet light?

• CHCl₃ + Cl₂ ⟶ CCl₄ + HCl

• ●CCl₃ + ●Cl ⟶ CCl₄

• CHCl₃ + ●Cl ⟶ CCl₄ + ●H

• ●CCl₃ + Cl₂ ⟶ CCl₄ + ●Cl

How many structural isomers are there with the molecular formula C₃H₆BrCl?

• 4

• 5

• 6

• 7

How many different alkenes are formed when 2-bromo-3-methylbutane reacts with ethanolic potassium hydroxide?

• 2

• 3

• 4

• 5

An organic compound is found to contain 40.0% carbon, 6.7% hydrogen and 53.3% oxygen.Which of the following compounds could this be?

• Ethanol

• Ethanoic acid

• Methanol

• Methanoic acid

Which one of the following mechanisms is not involved in the reaction sequence below?

CH₃CH₃ → CH₃CH₂Cl → CH₃CH₂OH → CH₂=CH₂ → CH₃CH₂Br

• electrophilic addition

• electrophilic substitution

• nucleophilic substitution

• free-radical substitution

What is the correct systematic name for

• 2-bromo-3-methylpent-2-ene

• 2-bromo-3-ethylbut-2-ene

• 3-bromo-2-ethylbut-2-ene

• 4-bromo-3-methylpent-3-ene

What is the correct systematic name for

• 2-ethyl-3,4-dimethylpent-2-ene

• 4-ethyl-2,3-dimethylpent-3-ene

• 2,3,4-trirnethylhex-3-ene

• 3,4,5-trimethylhex-3-ene