Question

a reaction in which dilute sulphuric acid is added to metal sulphide to give a rotten egg smell​

Answer 1

Answer:

(a) With warm dilute H2SO4 a sulphide gives hydrogen sulphide gas which smells like rotten eggs. A piece of filter paper dipped in lead acetate solution turns black on exposure to the gas due to the formation of lead sulphide which is black in colour.