Question

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What is physical reaction? ​

Answer 1

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A physical reaction occurs when molecules undergo a molecular rearrangement to produce a physical change. The molecules are not chemically altered. So, the difference is that with a physical reaction, a chemical change in the molecule is not observed, but a physical change is observed.

Answer 2

Answer:

A physical reaction is one where the particles of the substances that are involved in the change are not broken up in any way. (Physical changes only change the appearance of a substance, not its chemical composition.) E. g -

• Changes of state (changes from a solid to a liquid or a gas and vice versa)
• Separation of a mixture.
• Physical deformation (cutting, denting, stretching)
• Mixing sand and water.
• Breaking a glass.
• Dissolving sugar and water.
• Shredding paper.