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CAIE A-Level Chemistry AS 16.1.3 Classify Alcohols As Primary Secondary Questions

Practise classifying alcohols by the carbon bonded to OH and distinguishing primary, secondary and tertiary classes using oxidation and iodoform evidence.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • count carbon groups attached to the C–OH carbon to classify primary, secondary or tertiary alcohols
  • use acidified dichromate orange-to-green oxidation for primary and secondary but not tertiary alcohols
  • use alkaline iodine selectively for alcohols containing CH3CH(OH)– and interpret the observation

CAIE A-Level Chemistry AS 16.1.3 Classify Alcohols As Primary Secondary Questions question 1

[Maximum number: 1]

Which compound is a secondary alcohol that can be dehydrated to form an alkene with Mr=70M_{\mathrm{r}}=70 ?

A
Figure for Question CAIE A-Level Chemistry AS 16.1.3 Classify Alcohols As Primary Secondary Questions question 1 — CAIE A-Level Chemistry AS — Option A
B
Figure for Question CAIE A-Level Chemistry AS 16.1.3 Classify Alcohols As Primary Secondary Questions question 1 — CAIE A-Level Chemistry AS — Option B
C
Figure for Question CAIE A-Level Chemistry AS 16.1.3 Classify Alcohols As Primary Secondary Questions question 1 — CAIE A-Level Chemistry AS — Option C
D
Figure for Question CAIE A-Level Chemistry AS 16.1.3 Classify Alcohols As Primary Secondary Questions question 1 — CAIE A-Level Chemistry AS — Option D
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