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HCl has a higher boiling point than H2 because: A - Scottish Highers Chemistry - Question 3 - 2022
Question 3
HCl has a higher boiling point than H2 because: A. the polar covalent bonds in HCl are stronger than the covalent bonds in H2 B. the polar covalent bonds in HCl ar... show full transcript
Worked Solution & Example Answer:HCl has a higher boiling point than H2 because: A - Scottish Highers Chemistry - Question 3 - 2022
Step 1
C. the van der Waals' forces in HCl are stronger than the van der Waals' forces in H2
Answer
Hydrochloric acid (HCl) has a higher boiling point than hydrogen (H2) primarily due to the presence of stronger intermolecular forces in HCl. In HCl, the molecule exhibits dipole-dipole interactions due to its polar covalent bond, unlike H2, which only engages in weak London dispersion forces.
Therefore, option C is correct as the van der Waals' forces (which include dipole-dipole interactions in HCl) are indeed stronger than the primarily London dispersion forces present in H2.