Name: Changing the State of a Water Sample
Uploaded: 2019-07-19
Duration: 4 min 37 s
Description: Watch this video to observe how upon heating, water in the liquid phase changes to steam or water vapour, its gaseous phase and how cooling turns liquid wate...

Question

Give reason:

Cutting of a cloth piece is a physical change, though it cannot be reversed.

Accepted Answer

Cutting of a cloth piece is a physical change because it does not change the chemical composition of cloth and the change is only in the state, size, shape, colour, texture or the smell of some or all of the substances that undergo the physical change. Hence, the cutting of a cloth piece is a physical change, though it cannot be reversed.

Generally, a physical change is defined as a temporary change in which no new substance is formed and the chemical composition of the original substance remains the same, even though its physical properties like colour, state, shape, size etc. might change.

Give reason:

Cutting of a cloth piece is a physical change, though it cannot be reversed.

Important Questions on Physical and Chemical Changes

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