Which of the following statements describes why sugar dissolves in water to form a solution?
Sugar molecules interact with water molecules, allowing them to separate and spread evenly.
Sugar dissolves because its molecules are attracted to water molecules (they form hydrogen bonds with water through their –OH groups).
These attractions pull individual sugar molecules away from the crystal, and they spread evenly among the water molecules, forming a homogeneous solution.
Dissolving is a physical change; water does not convert sugar into a new substance — sugar can be recovered by evaporation.
A sugar solution is a true solution, not a suspension; the particles are not visible and do not settle.
Sugar does not remain at the bottom when enough water is present; it dissolves completely.
Hence, the answer is Sugar molecules interact with water molecules, allowing them to separate and spread evenly.
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Important Questions from Basic Concepts of Chemistry
Which of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
The volume of CO 2liberated at STP when 10 gm of 90% pure limestone strongly heated is
Water can dissolve more substances than any other liquid because
An alloy is:
