In which of the following sequences are the compounds listed in order of decreasing acidity? A)CH₃COOH H₂O PhOH HC$\equiv$CH NH₃ B)PhOH CH₃COOH H₂O HC$\equiv$CH NH₃ C)CH₃COOH PhOH H₂O HC$\equiv$CH NH₃ D)H₂O CH₃COOH PhOH HC$\equiv$CH NH₃ E)PhOH H₂O CH₃COOH HC$\equiv$CH NH₃

Question

In which of the following sequences are the compounds listed in order of decreasing acidity? A)CH₃COOH > H₂O > PhOH > HC$\equiv$CH > NH₃ B)PhOH > CH₃COOH > H₂O > HC$\equiv$CH > NH₃ C)CH₃COOH > PhOH > H₂O > HC$\equiv$CH > NH₃ D)H₂O > CH₃COOH > PhOH > HC$\equiv$CH > NH₃ E)PhOH > H₂O > CH₃COOH > HC$\equiv$CH > NH₃

Quizplus · Accepted Answer

The correct sequence in order of decreasing acidity is: Carboxylic acid (CH3COOH) > Phenol (PhOH) > Alcohol (H2O) > Fluoroform (HCF3) > Ammonia (NH3). Carboxylic acids are generally the most acidic due to resonance stabilization of the carboxylate anion, phenols come next due to the ability of the aromatic ring to delocalize the negative charge, alcohols are less acidic than phenols, fluoroform is more acidic than most hydrocarbons due to the electronegativity of fluorine, and ammonia is the least acidic among the listed compounds.

In Which of the Following Sequences Are the Compounds Listed ≡\equiv≡

In Which of the Following Sequences Are the Compounds Listed $\equiv$