Question

what is the physical state of water at 250 and 100 degree Celsius

Answer 1

At 250 degree water is in gaseous state.

At 100 degree water is in liquid state.

Answer 2

At 250 degree celcius physical state of water is gaseous (in the form of water vapours). While at 100 degree celcius physical state of water is both gaseous and liquid because at this temp water starts boiling so it exists both as boiling water and steam or vapour.