Process 1 is cutting of vegetables .
Process 2 is making curry of vegetable.

Which process is physical and irreversible?

Answer: C. Process 1

A physical change affects the form of a substance but not its chemical identity. An irreversible change is one that cannot be undone to return to the original state.
Process 1 (Cutting vegetables): This is a physical change because the vegetable is still the same substance, just in smaller pieces. It is irreversible because you cannot "un-cut" the pieces back into a whole, growing vegetable.

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