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CAIE A-Level Chemistry AS 21.1.3 Analyse Questions

Practise CAIE 9701 organic routes by reading each structural change, naming the reaction, selecting conditions and checking competing pathways or by-products.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • classify each arrow as addition, substitution, elimination, oxidation, reduction, hydrolysis or condensation
  • infer a missing reagent from the structural change and state necessary solvent, catalyst or heating
  • check for competing substitution, further oxidation or multiple-product pathways when naming by-products

CAIE A-Level Chemistry AS 21.1.3 Analyse Questions question 1

[Maximum number: 1]

Each of the compounds below is treated separately with an excess of NaBH4\mathrm{NaBH}_{4}.
The product of each reaction is then heated with an excess of concentrated H2SO4\mathrm{H}_{2} \mathrm{SO}_{4}.
Which compounds give only one final product with the molecular formula C7H10\mathrm{C}_{7} \mathrm{H}_{10} ?

1

1

2

2

3

3

A

1, 2 and 3 are correct

B

1 and 2 only are correct

C

2 and 3 only are correct

D

1 only is correct

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