Answer : The correct option is, (2) hydronium ion
Explanation :
When an acid sulfuric acid react with water or an aqueous solution, it will dissociates into hydronium ion and hydrogen sulfate ion.
The balanced dissociation reaction will be,
[tex]H_2SO_4+H_2O\rightleftharpoons H_3O^++HSO_4^-[/tex]
As per question, hydronium ion is the only positive ion found in an aqueous solution of sulfuric acid and hydrogen sulfate ion is the only negative ion found in an aqueous solution of sulfuric acid.
Hence, the correct option is, (2) hydronium ion
