Question

When H₂S is passed through a mixture containing Cu⁺², Ni⁺², Zn⁺² in acidic solution then ion will precipitate 

(a) Cu⁺², Ni⁺² 

(b) Ni⁺² 

(c) Cu^+2, Zn⁺² 

(d) Cu⁺²

Answer 1

Cu⁺² is passed through a mixture containing Cu^+2, Ni⁺², Zn⁺² in acidic solution then ion will precipitate .