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

Options

A. `H_(3)O^(+) + Cl^(-)`
B. `H_(3)O^(+)+OH^(-)`
C. `Cl^(-)+OH^(-)`
D. unionised HCl

Answer

A

Explanation

HCl will react with water as follows :
`HCl(l) +H_(2)OltoH_(3)overset(+)(O)(aq)+Cl^(-) (aq)`