Chemistry · States of Matter - Gases, Liquids and Solids
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Which of the following molecules are soft and have weak intermolecular forces?
- A
H2O
- B
I2
- C
Sugar
- D
Graphite
I2 is a molecular solid that is soft and has weak intermolecular forces. It exists as discrete I2 molecules held together by relatively weak Van der Waals interactions.
This option is not correct. H2O has strong intermolecular forces : two hydrogen bonds per molecule
This option is correct.I2 is a molecular solid that is soft and has weak intermolecular forces. It exists as discrete I2 molecules held together by relatively weak Van der Waals forces.
This option is incorrect. Sugar contains intramolecular covalent bonds and intermolecular hydrogen bonds. Additionally, sugar is not soft; it exists in crystalline form.
This option is incorrect. Graphite has covalent bonds within its molecules and weak intermolecular forces between these molecules. Furthermore, it is classified as a covalent solid and is stronger than molecular solids like I2.
Tagged under Chemistry · States of Matter - Gases, Liquids and Solids · 2023