A student wants to prepare a sample of bromoethane, , starting from ethanol, . State two different reagents and conditions that could be used to carry out this conversion. For each, give the equation. Explain why the product is classified as a primary halogenoalkane.
CAIE A Level Chemistry 9701 · Halogen compounds
Halogen compounds: explain question
Explain4 marksStandard
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.
More Halogen compounds questions
- 4 marks · Chloroethane and chlorobenzene both contain a C–Cl bond. Explain why chloroethane reacts readily with aqueous silver nitrate to give a…
- 4 marks · A student wants to prepare chlorobenzene from benzene. Suggest a suitable reagent and catalyst for this reaction. In your answer, also…
- 5 marks · 2-bromobutane is a secondary halogenoalkane. When it is heated with sodium hydroxide in ethanol, an elimination reaction occurs, producing…
- 5 marks · Chloroethane and chlorobenzene both contain a C–Cl bond. Describe the difference in reactivity between these two compounds, and explain…
- 5 marks · Butan-2-ol reacts with hydrogen chloride gas to form 2-chlorobutane. The reaction can proceed through either an SN1 or an SN2 mechanism…
- 5 marks · Ethane gas is mixed with chlorine and the mixture is exposed to ultraviolet light. A reaction takes place in which one of the hydrogen…
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.