JAMB - Chemistry (2002 - No. 9)
When H\(_2\)S is passed into a solution of iron (III) chloride, the solution turns
Pale green
Pale red
Brown
Colourless
Explanation
A reaction between Iron (iii) chloride and Hydrogen sulphide leads to the reaction
2FeCl\(_3\)(aq) + H\(_2\)S(g) → 2FeCl\(_2\)(aq) + 2HCl(aq) + S(s)
The colour change is from REDDISH BROWN to PALE GREEN.
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