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#intermolecular interactions

3 public questions tagged with this topic.

Chemical Bonding

Which of the following interactions contributes least to the stability of a DNA double helix?

London dispersion forces accurately identifies the binding site, binding partner, or molecular interaction described in this question. In Chemical Bonding, molecular recognition and binding specificity are governed by complementary shape, charge, and hydrophobic interactions between molecules. London dispersion forces binds at the specified location due to its structural complementarity and specific non-covalent or covalent interactions. The other options (Base stacking interactions, Hydrogen bonding between base pairs, and Covalent bonds in sugar-phosphate backbone) describe binding to different sites, involve different types of molecular interactions, or represent incorrect binding partners.

Ref: Campbell Biology, Urry et al., 12th Ed.

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Chemical Bonding

Which of the following interactions occurs between a charged and a polar molecule?

Ion-dipole interaction accurately describes the key difference, similarity, or comparative feature asked about in this question. In Chemical Bonding, the ability to compare and contrast related concepts is essential for deeper understanding. The distinguishing feature described by Ion-dipole interaction reflects fundamental differences in structure, function, mechanism, or origin between the compared entities. The other options (Dipole-dipole interaction, Induced dipole-dipole interaction, and London dispersion force) either state incorrect comparisons, confuse the properties of the entities being compared, or describe features that are actually shared rather than different.

Ref: Campbell Biology, Urry et al., 12th Ed.

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Chemical Bonding

Which of the following is the weakest intermolecular interaction?

Van der Waals interactions accurately identifies the binding site, binding partner, or molecular interaction described in this question. In Chemical Bonding, molecular recognition and binding specificity are governed by complementary shape, charge, and hydrophobic interactions between molecules. Van der Waals interactions binds at the specified location due to its structural complementarity and specific non-covalent or covalent interactions. The other options (Covalent bonds, Hydrogen bonds, and Hydrophobic interactions) describe binding to different sites, involve different types of molecular interactions, or represent incorrect binding partners.

Ref: Campbell Biology, Urry et al., 12th Ed.

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