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Answer» Answer: Column A Column B A change in which NEW substance is formed Chemical changes Changes in which physical properties like shape, SIZE and state changes without formation of new substance Physical changes Those changes which take place in a LONG period of time Slow changes Those changes which we do not want to take place Undesirable changes A change that does not REPEAT again and again after a regular interval of time Non-periodic change Burning of fuel is a Irreversible change Explanation:

Answer»

Answer:

Column A

Column B

A change in which NEW substance is formed

Chemical changes

Changes in which physical properties like shape, SIZE and state changes without formation of new substance

Physical changes

Those changes which take place in a LONG period of time

Slow changes

Those changes which we do not want to take place

Undesirable changes

A change that does not REPEAT again and again after a regular interval of time

Non-periodic change

Burning of fuel is a

Irreversible change

Explanation:

Discussion