In C₃H₇NHC₃H₇,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.

Question

Quizplus · Accepted Answer

The presence of "hydrogen bonding" suggests the molecular compounds present have hydrogen atoms bonded to nitrogen, oxygen, or fluorine, which will create a strong intermolecular force. "Dipole-dipole forces" are present in polar molecules where the electronegativity difference between atoms creates a dipole moment, attracting the oppositely charged ends of different molecules. Finally, "dispersion forces" are present in all molecules due to the temporary fluctuation in electron density, creating temporary dipoles. Therefore, choice A is the best choice as all three intermolecular forces are present.

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In C₃H₇NHC₃H₇,which Intermolecular Forces Are Present