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IB Chemistry SL 2.2.2 Bond Types and Strength Questions

Use exam questions to compare single, double and triple bonds by their shared pairs, length, strength and dissociation energy.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Rank related single, double and triple bonds by bond order, predicting that more shared pairs give shorter and stronger bonds.
  • Use stated or data-booklet bond lengths to justify a predicted ordering or an intermediate measured bond length.
  • Connect bond strength or bond enthalpy with the energy or wavelength of radiation required to break the bond.

Learn this topic

Study 2.2.2—Bond types and strength conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Chemistry SL 2.2.2 Bond Types and Strength Questions question 1

[Maximum number: 1]

Ethyne, C2H2\mathrm{C}_{2} \mathrm{H}_{2}, reacts with oxygen in welding torches.

Compare, giving a reason, the length of the bond between the carbon atoms in ethyne with that in ethane, C2H6\mathrm{C}_{2} \mathrm{H}_{6}.

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