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CAIE A-Level Chemistry AS 16.1.1 Preparation of Alcohols Questions

Practise selecting CAIE 9701 routes to alcohols using steam hydration, aqueous hydroxide, NaBH4, LiAlH4 and ester hydrolysis.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • hydrate an alkene with steam and phosphoric acid or oxidise it cold with dilute acidified manganate(VII) to a diol
  • hydrolyse a halogenoalkane with aqueous hydroxide and heat, or reduce aldehydes and ketones with NaBH4
  • reduce carboxylic acids with LiAlH4 and hydrolyse esters under hot dilute acid or alkali

CAIE A-Level Chemistry AS 16.1.1 Preparation of Alcohols Questions question 1

[Maximum number: 1]

The conversion of propan-1-ol into propan-2-ol can be completed in a two-stage synthesis.
The first stage is to heat the propan-1-ol with concentrated sulfuric acid.

Which reagent would be needed to complete the second stage?

A

cold dilute acidified manganate(VII) ions

B

hot concentrated acidified manganate(VII) ions

C

steam with phosphoric acid

D

aqueous sodium hydroxide

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