TASC Chemistry Level 4 Practice Questions - TASC Chemistry Level 4 (CHM415115) External Assessment Exam

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Which dominant intermolecular force accounts for the surprisingly high boiling point of water (100 °C) compared to hydrogen sulfide (-60 °C)?

Hydrogen bonding between highly polar O-H bonds. Permanent dipole-dipole forces between sulfur atoms. Dispersion forces resulting from large electron clouds. Covalent network bonding throughout liquid water.

Correct Answer:

Hydrogen bonding between highly polar O-H bonds.

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