Question

Anhydrous ferric chloride is prepared by:

• A. Heating hydrated ferric chloride at a high temperature in a stream of air.
• B. Heating metallic iron in a stream of dry chlorine gas.
• C. Reaction of ferric oxide with hydrochloric acid.
• D. Reaction of metallic iron with hydrochloric acid.

Answer 1

The correct option is B

Heating metallic iron in a stream of dry chlorine gas.

In order to prepare, Anhydrous iron(III) chloride, we start with iron filings and heat it is a stream of dry chlorine gas.
The reaction for this process is as given below.
2 Fe(s) + 3 Cl₂(g) → 2 FeCl₃(s)