Question Detail
Question
The Brønsted base in H₃O⁺ + HCl → H₃O⁺ + Cl⁻ is which?
Correct Answer
Option A is the correct answer.
Detailed Explanation
The equation appears to have an error; it should show a reaction where a base accepts a proton. In the reverse direction, Cl⁻ can accept a proton to become HCl. Based on standard acid-base theory, Cl⁻ is the conjugate base of HCl. Given the options and typical questions, Cl⁻ is the base.
Hint
A Brønsted base is a proton acceptor.