A red-brown metal X forms a salt `XSO_(4)` . When hydrogen sulphide gas is passed through an aqueous
Channel: Doubtnut
Date: 2020-01-26

A red-brown metal X forms a salt `XSO_(4)` . When hydrogen sulphide gas is passed through an aqueous solution of `XSO_(4)` , then a black precipitate of XS is formed along with sulphuric acid solution. (a) What could the salt `XSO_(4)` be (b) What is the colour of salt `XSO_(4)` ? (c) Name the black precipitate XS. (d) By using the formula of the salt obtained in (a) above , write an equation of the reaction which takes place when hydrogen sulphide gas is passed through its aqueous solution. (e) What type of chemical reaction takes place in this case ?