CourseCourseConceptConceptDocumentDocument

CAIE A-Level Chemistry AS 22.2.4 Suggest the Identity of Molecules Formed Questions

Practise CAIE 9701 fragment-ion analysis by matching m/e to positively charged fragments, showing plausible cleavages and distinguishing structures.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • propose a positively charged fragment whose atom totals and nominal mass match the m/e peak
  • show the bond cleavage that could generate fragments such as C4H9+ while conserving the remaining atoms
  • use presence or absence of diagnostic peaks such as m/e 41, 43 or 57 to select between isomers

CAIE A-Level Chemistry AS 22.2.4 Suggest the Identity of Molecules Formed Questions question 1

[Maximum number: 1]

Three organic compounds are listed.
1 ethanal
2 propan-1-ol
3 propan-2-ol
Which compounds will have a mass spectrum that contains a fragment peak at m / e=43 ?

A

1 only

B

1 and 2 only

C

2 and 3 only

D

1, 2 and 3

All question bank results loaded