Which of the following is /are true when `HCl` (g) is passed through water ?
(i) It does not ionise in the solution as it is a covalent compound.
(ii) It ionises in the solution.
(iii) It gives both hydrogen and hydroxyl ion in the solution.
(iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule.

Options

A. Only `(i)`
B. Only `(iii)`
C. `(ii) and (iv)`
D. `(iii) and (iv)`

Answer

C

Explanation

When HCI is passed through water then HCI being a polar covalent compound, ionises in water as
`HCl(aq)rarrH^(+)+Cl^(-)`
`H^(+)+H_(2)OrarrH_(3)O^(+)`