Question

Between ethanol and ethanethiol, which
is stronger acid?​

Answer 1

Answer:

The thiol is more acidic because the sulfur atom is larger than the oxygen atom.

Hence more electronegativity provides more acidic character.

Therefore, between Ethanol and Ethanethiol, the latter is more acidic.

Explanation:

Answer 2

Ethanethiol is more acidic than ethanol.

• Acidic strength is determined by the ease of release of the proton (H⁺ ions).
• More easily proton release into the solution, the more will be the acidic strength of that molecule.
• The release of H⁺ ions depends on the strength of the bond between hydrogen (H) and the atom (A) to which it is attached.
• Stronger is the bond between H-A, weaker be its acidic nature, and vice-versa.
• In the case of ethanol, the O-H bond is stronger as O is more electronegative, and in the case of ethanethiol, the S-H bond is weaker as S is less electronegative than oxygen.
• Due to the strong bonding of O-H, it will be harder to release H⁺ ions, so ethanol is less acidic.
• Due to the weaker bond between S-H, it will be easy to release H⁺ ions, so ethanethiol is more acidic.