Question

In the_______ properties of molecules remain same even after the change.

• A. physical change
• B. chemical change
• C. biochemical change
• D. photochemical change

Answer 1

The correct option is A physical change

In physical change properties of molecules remain the same even after the change. Physical properties like colour, density, volume, mass, boiling point, melting point only have an effect on their physical nature, the chemical nature of the substance remains the same. Physical properties are used to observe and describe matter.