Suggest the most important type of intermolecular attractive interaction in the following pairs.
Suggest the most important type of intermolecular attractive interaction in the following pairs.
(i) n-hexane and n-octane
(ii) I2 and CCl4
(iii) NaClO4 and water
(iv) methanol and acetone
(v) acetonitrile (CH3CN) and acetone (C3H6O).
2 Answers
(i) Van der Wall’s forces of attraction.
(ii) Van der Wall’s forces of attraction
. (iii) Ion-diople interaction.
(iv) Dipole-dipole interaction.
(v) Dipole-dipole interaction.
(i) Both are non-polar. Hence, inter molecular interactions in them will be London/ dispersion forces.
(ii) Both are non-polar. Hence, inter molecular interactions in them will be London/ dispersion forces.
(iii) NaClO4 gives Na+ and ClO4 - ions in the solution while water is polar molecule. Hence, intermolecular interactions in them will be ion – dipole interactions.
(iv) Both are polar molecules. Hence intermolecular interactions in them will be dipole-dipole interactions.
(v) Both are polar molecules. Hence intermolecular interactions in them will be dipole-dipole interactions.