IB Chemistry HL 2.2.2 Bond Types and Strength Question Bank

Practise IB Chemistry HL 2.2.2 by comparing bond order, length and strength across structures and explaining how shared electron pairs change covalent bonding.

Exam points

rank related bonds by bond order, predicting shorter and stronger bonds as order rises
use data-booklet bond lengths to justify a predicted or intermediate measured value
connect bond strength with the energy or wavelength required to break the bond

[Maximum number: 2]

An organic compound, X, with a molar mass of approximately $88 \mathrm{~g} \mathrm{~mol}^{-1}$ contains 54.5 % carbon, 36.3 % oxygen and 9.2 % hydrogen by mass.

The carboxylic acid contains two different carbon-oxygen bonds. Identify which bond is stronger and which bond is longer.

Stronger bond:

Longer bond:

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2.2.2—Bond types and strength question 1