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Question: Answered & Verified by Expert
Anhydrous ferric chloride is prepared by:
Chemistryd and f Block ElementsJEE Main
Options:
  • 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 HCl (aq).
  • D Reaction of metallic iron with HCl (aq).
Solution:
1883 Upvotes Verified Answer
The correct answer is: Heating metallic iron in a stream of dry chlorine gas.
(1)On heating we get FeCl 2 and Cl 2
2  2Fe+ 3Cl 2 → 2FeCl 3 (anhydrous);
3 , 4 do not give anhydrous FeCl3 but give hydrated FeCl3 .

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