Question

Lithium, sodium, potassium are all metals that react with water liberate with hydrogen gas

Answer 1

YES THEY REACT WITH METALS TO LIBRATE HYDROGEN GAS.
THEY ARE HIGHLY REACTIVE METAS.


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Answer 2

Lithium, Sodium , and potassium  are all metals having one free electron in them.  They become ions of 1 proton charge.  they have all valency of +1.  they all form  hydroxides and bases with water.  Chemical reactivity is high for these metals.