Question

Which of the following are present in a dilute aqueous solution of hydrochloric acid?

Options

• H₃O⁺ + Cl^–

• H₃O⁺ + OH^–

• Cl^– + OH^–

• unionised HCl

Answer 1

H₃O⁺ + Cl^–

Explanation - 

HCl will react with water as follows :

`"HCl"("l") + "H"_2"O"("l") -> "H"_3"O"^+("aq") + "Cl"^-("aq")`