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18 Nov 2019
C) 3 substance in each of the following pairs is expected to have the larger dispersion forces? or I2 n-butane iaobutane A) Br2 in set I and n-butane in set I B) Br2 in set I and isobutane in set II C) 12 in set I and n-butane in set II D) 12 in set I and isobutane in set II 7) In liquid methanol, CH3OH, which intermolecular forces are present? A) Dispersion, hydrogen bonding and dipole-dipole forces are present. B) Only dipole-dipole and ion-dipole forces are present. C) Only dispersion and dipole-dipole forces are present. D) Only hydrogen bonding forces are present å the magnitude of the heats of vaporization, fusion and sublimation of a substance reflecet the A) density of the substance. B) magnitudes of the boiling and melting points of the substance. C) strength of the covalent bonds between atoms in each molecule of the substance. D) strength of the intermolecular forces of the substance. Which of the following mixtures have components which can be separated by filtration? A) colloids B) solutions C) D) All of these
C) 3 substance in each of the following pairs is expected to have the larger dispersion forces? or I2 n-butane iaobutane A) Br2 in set I and n-butane in set I B) Br2 in set I and isobutane in set II C) 12 in set I and n-butane in set II D) 12 in set I and isobutane in set II 7) In liquid methanol, CH3OH, which intermolecular forces are present? A) Dispersion, hydrogen bonding and dipole-dipole forces are present. B) Only dipole-dipole and ion-dipole forces are present. C) Only dispersion and dipole-dipole forces are present. D) Only hydrogen bonding forces are present å the magnitude of the heats of vaporization, fusion and sublimation of a substance reflecet the A) density of the substance. B) magnitudes of the boiling and melting points of the substance. C) strength of the covalent bonds between atoms in each molecule of the substance. D) strength of the intermolecular forces of the substance. Which of the following mixtures have components which can be separated by filtration? A) colloids B) solutions C) D) All of these
Irving HeathcoteLv2
19 Jul 2019