IB Chemistry SL 2.2.2 Bond Types and Strength

Practise comparing single, double and triple covalent bonds through the number of shared pairs, bond order, length and strength. Use structural evidence or data-booklet values to…

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: 1]

Ethyne, $\mathrm{C}_{2} \mathrm{H}_{2}$ , 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, $\mathrm{C}_{2} \mathrm{H}_{6}$ .

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2.2.2—Bond types and strength question 1