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Question
Which of the following are present in a dilute aqueous solution of hydrochloric acid?
Options
H3O+ + Cl–
H3O+ + OH–
Cl– + OH–
unionised HCl
Solution
H3O+ + Cl–
Explanation -
HCl will react with water as follows :
`"HCl"("l") + "H"_2"O"("l") -> "H"_3"O"^+("aq") + "Cl"^-("aq")`
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