Question

$H_3BO_3$ is

• A. monobasic acid and weak Lewis acid
• B. monobasic and weak Bronsted acid
• C. monobasic and strong Lewis acid
• D. tribasic and weak Bronsted acid

Answer 1

Answer: (A)

monobasic acid and weak Lewis acid

Answer 2

The correct option is(A): monobasic acid and weak Lewis acid.

H3BO3 (Boric Acid):

Monobasic Acid: Boric acid is a weak monobasic acid. This means it can donate one hydrogen ion (H+) per molecule when it reacts with water. However, its acidity is relatively weak compared to strong acids. It forms a relatively small number of hydrogen ions in solution.

Weak Lewis Acid: Boric acid is considered a weak Lewis acid. A Lewis acid is a species that can accept an electron pair from a Lewis base during a chemical reaction. In the case of boric acid, it has an empty p-orbital on the boron atom, which allows it to accept an electron pair from a Lewis base.

• Boric acid is a weak monobasic acid, capable of donating one hydrogen ion per molecule in water.
• Boric acid is a weak Lewis acid, as it can accept an electron pair from a Lewis base..