Question

The reagent used to distinguish iron (II) chloride and iron (III) chloride is
A. distilled water
B. NaOH
C. dil. HCI
D. Warm water

Answer 1

Answer:

Explanation:

We can distinguish between iron (II) chloride and iron (III) chloride by using NaOH.

When NaOH reacts with iron (II) chloride, it forms a dirty green precipitate whereas when NaOH reacts with iron (III) chloride, it forms a brown gelatinous precipitate.

Answer 2

Answer:

NaOH

Explanation:

NaOH on reaction with FeCl2 gives a dirty green ppt while it gives a reddish brown ppt with FeCl3