Question:

$H_3BO_3$ is

Updated On: Aug 31, 2023
  • monobasic acid and weak Lewis acid
  • monobasic and weak Bronsted acid
  • monobasic and strong Lewis acid
  • tribasic and weak Bronsted acid
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The Correct Option is A

Solution and Explanation

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..
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Concepts Used:

P-Block Elements

  • P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
  • P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.

P block elements consist of: