Classify the following as physical or chemical change.
Metallic sodium is soft enough to be cut with a knife.
Physical
Chemical
None of these
Both A and B
A
None of these
B
Physical
C
Chemical
D
Both A and B
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Solution
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Physical Change:
It is a process in which the substance experiences a change in its physical properties like shape, size, colour, volume, appearance, state etc.
There is no change in its chemical composition.
When sodium metal is cut, there are only changes in its shape. Therefore, it is a physical change.
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