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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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