Answer:
Lewis acid is a substance that donates a lone-pair of electrons.
Explanation:
What is said in the statement corresponds to a Lewis base, not an acid. For example, NH3 is a Lewis base, since it is capable of donating its pair of electrons. Trimethylborane (Me3B) is a Lewis acid, since it is capable of accepting a solitary pair.
Answer : The incorrect statement is, Lewis acid is a substance that donates a lone-pair of electrons.
Explanation :
According to the Arrhenius theory, an acid is a substance that ionizes in the water to give hydronium ion [tex](H_3O^+)[/tex] or hydrogen ion [tex](H^+)[/tex] and a bases is a substance that ionizes in the water to give hydroxide ion [tex](OH^-)[/tex].
According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.
According to the Lewis acid-base theory, an acid is a substance that accepts pairs of electrons and the a base is a substance that donates pairs of electrons.
The pH of an acid is always less than 7.
Hence, the incorrect statement is, Lewis acid is a substance that donates a lone-pair of electrons.
