Which of the following cation does not give precipitate with `H_(2)S` in neutral medium?

Options

A. `Fe^(3+)`
B. `Cu^(2+)`
C. `Bi^(3+)`
D. `Ag^(+)`

Answer

A

Explanation

`Fe^(3+)(aq.)+H_(2)S overset("Redox")to S darr+Fe^(2+)(aq.) overset("Neutral "H_(2)S) to ` No ppt.