Discussion
Which of the following has the weakest binding ?
Answer: D
The weakest binding is van der Waals forces.
Van der Waals forces are weak, short-range attractions between molecules arising from temporary or permanent dipoles, typically under 10 kJ/mol. They are intermolecular forces, not true chemical bonds.
Covalent, coordinate and ionic bonds are true chemical bonds with energies of the order of hundreds of kJ/mol, tens of times stronger.
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