In which of the following compounds does hydrogen act as a Lewis acid?

₹0.0

Question: In which of the following compounds does hydrogen act as a Lewis acid?

Options:

Correct Answer: HCl

Solution:

In HCl, hydrogen can act as a Lewis acid by accepting an electron pair.

In which of the following compounds does hydrogen act as a Lewis acid?

In which of the following compounds does hydrogen act as a Lewis acid?

Step 1: Understand what a Lewis acid is. A Lewis acid is a substance that can accept an electron pair.
Step 2: Look at the compound HCl. It consists of hydrogen (H) and chlorine (Cl).
Step 3: In HCl, hydrogen has a positive charge because it is bonded to chlorine, which is more electronegative.
Step 4: Since hydrogen has a positive charge, it can accept an electron pair from another atom or molecule.
Step 5: Therefore, in HCl, hydrogen acts as a Lewis acid by accepting an electron pair.

Lewis Acids and Bases – A Lewis acid is a substance that can accept an electron pair, while a Lewis base is one that can donate an electron pair.
Hydrogen as a Lewis Acid – In certain compounds, hydrogen can act as a Lewis acid by accepting electron pairs from Lewis bases.