Question

Yellow color solution of $FeC{l}_3$ changes to light green when:

• A. $SnC{l}_2$ is added
• B. $Zn$ is added
• C. $H_{2}S$ gas is passed
• D. all true

Answer 1

The correct option is D all true

In all cases, Yellow color solution of $FeC{l}_3$ changes to light green.It means ferric chloride is reduced to $FeC{l}_2$ which is light green in color.