Question

10. Which of the following is a physical change?
(a) Solubility in water
(c) Combustibility
(b) Aerial oxidation
(d) Reaction with water​

Answer 1

Answer:

Solubility in water.

Hope this helps

Answer 2

Solubility in water is a physical change.

• A change is called physical change if no new product is formed.
• Among combustion, aerial oxidation, and reaction with water, all are chemical reactions i.e. the atoms of the substances recombine to form new molecules.
• Solubility, on the other hand, is the result of the intermolecular forces between solute and solvent, and hence no new molecules are formed.
• Hence, solubility is a physical change.

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