Question:
Anhydrous ferric chloride is prepared by
Anhydrous ferric chloride is prepared by
Updated On: Jun 14, 2022
- heating hydrated ferric chloride at a high temperature in a stream of air
- heating metallic iron in a stream of dry chlorine gas
- reaction of ferric oxide with hydrochloric acid
- reaction of metallic iron with hydrochloric acid
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The Correct Option is B
Solution and Explanation
Heating iron in stream of dry chlorine gas gives $FeCl_3$ in anhydrous form. In all other cases (a and c) hydrated $FeCl_3$ is obtained while in (d), $FeCl_2$ is formed.
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General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal