NCERT Solution for Class 9 Science Chapter 1
Matter in Our Surroundings
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Exercises Questions
Page No-12
Questions No-4
Arrange the following substances in increasing order of forces
of attraction between the particles— water, sugar, oxygen.
Oxygen < Water < Sugar.
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Oxygen —> water —> sugar.
Oxygen Molecule:
Due to its diatomic nature (O2), these forces are feeble compared to other substances discussed.
Water Molecule:
Possesses stronger intermolecular forces attributed to hydrogen bonding.
Hydrogen bonding occurs due to the polarity of water molecules, resulting in a powerful force of attraction between water molecules.
Sugar Molecule:
Demonstrates significantly stronger intermolecular forces compared to oxygen and water.
Features multiple hydrogen bonds and various dipole-dipole interactions between molecules.