NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice
Anhydrous ferric chloride is prepared by:
Options
- AHeating hydrated ferric chloride at a high temperature in a stream of air.
- BHeating metallic iron in a stream of dry chlorine gas.
- CReaction of ferric oxide with HCl (aq).
- DReaction of metallic iron with HCl (aq).
Correct answer
B. Heating metallic iron in a stream of dry chlorine gas.
Step-by-step solution
( 1 ) On heating we get FeCl 2 and Cl 2 2 2Fe + 3Cl 2 → 2FeCl 3 (anhydrous); 3 , 4 do not give anhydrous F e C l 3 but give hydrated F e C l 3 .