IB Chemistry HL 2.2.8 Intermolecular Forces Question Bank

Practise IB Chemistry HL 2.2.8 by deducing the dominant intermolecular force from molecular size, polarity and hydrogen-bonding opportunities.

Exam points

deduce the intermolecular forces present from molecular polarity and functional groups
compare London-force strength using electron count, molecular size and contact surface
draw a hydrogen bond from an O-H or N-H donor to a valid lone-pair acceptor

[Maximum number: 2]

Urea, $\left(\mathrm{H}_{2} \mathrm{~N}\right)_{2} \mathrm{CO}$ , is excreted by mammals and can be used as a fertilizer.

Sketch two different hydrogen bonding interactions between ammonia and water.

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