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CAIE A-Level Chemistry AS 13.3.2 Shape of and Bond Angles in Molecules Questions

Practise predicting shapes and bond angles around sp, sp2 and sp3 hybridised atoms in organic molecules.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • identify sp centres as linear with 180° bond angles and sp2 centres as trigonal planar near 120°
  • identify saturated carbon as sp3 and tetrahedral with bond angles close to 109.5°
  • apply the local geometry to each labelled atom rather than assigning one hybridisation to the whole molecule

CAIE A-Level Chemistry AS 13.3.2 Shape of and Bond Angles in Molecules Questions question 1

[Maximum number: 1]

Histidine is an amino acid.

histidine

histidine

What are the approximate bond angles 1,2 , and 3 ?

1

2

3

109.5∘109.5^{\circ}

107∘107^{\circ}

90∘90^{\circ}

120∘120^{\circ}

107∘107^{\circ}

109.5∘109.5^{\circ}

120∘120^{\circ}

120∘120^{\circ}

90∘90^{\circ}

120∘120^{\circ}

120∘120^{\circ}

109.5∘109.5^{\circ}

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