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Which of the following is produced when hydrochloric acid reacts with water?
Question

Which of the following is produced when hydrochloric acid reacts with water?

A.

Both H3O+H_3O^+  and ClCl^-​​

B.

Both HOHO^- and ClCl^-​​

C.

Only ClCl^-​​

D.

Only H3O+H_3O^+​​

Correct option is A

Correct Answer: Both H₃O⁺ and Cl⁻

Explanation:

  •  When hydrochloric acid (HCl) reacts with water, it dissociates completely into hydrogen ions (H⁺) and chloride ions (Cl⁻).
  • The hydrogen ions combine with water molecules to form hydronium ions (H₃O⁺). Hence, both H₃O⁺ and Cl⁻ are produced during this reaction.

Reaction:
                                 HCl + H₂O → H₃O⁺ + Cl⁻

Information Booster:

  •    HCl is a strong acid, meaning it ionizes completely in water.
  •    The formation of H₃O⁺ indicates the acidic nature of the solution.
  •     Cl⁻ ions are spectator ions that do not affect the pH.
  •     The reaction is an example of an acid-base reaction where water acts as a base.
  •    This reaction demonstrates Arrhenius acid behavior.

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