The statement, that describes acid-base theory in which the H2O molecule is "accepts [tex]H^{+}[/tex] ions."
An acid is a compound that accepts a pair of electrons. A base is a generator of electron pairs. This is the broadest theory of acids and bases. Water can serve as both an acid and a base in solution, and it can also be both an acid and a base to itself. Water takes hydrogen ions and behaves as a base when coupled with an acid. When water is combined with a base, it gives hydrogen ions and so behaves as an acid. Using the balanced equation, the water molecule acts a acid which accepts the hydrogen ion. to form hydronium ion.
Hence the correct option is 1.
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