`BaCl_(2)` solution gives a white precipitate with a solution of a salt, which dissolves in dilute hydrochloric acid with the evolution of colourless, pungent smelling gas. The gas as well as the salt both are used as bleaching agent in the textile industries. The salt contains :

Options

A. sulphite
B. sulphide
C. acetate
D. carbonate

Answer

A

Explanation

`Ba^(2+) +SO_(3)^(2-) to BaSO_(3) darr ("white")`
`BaSO_(3)+2HCl to BaCl_(2) + SO_(2)("colourless pungent smelling gas") +H_(2)O`
`SO_(3)^(2-) " and" SO_(2)` both act as bleaching agent.