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Anhydrous ferric chloride is prepared by...

Anhydrous ferric chloride is prepared by:

A

dissolving ferric hydroxide in dilute `HCl`

B

dissolving ferric hydroxide in concentrated `HCl`

C

by passing dry `Cl_(2)` gas over heated scrap iron

D

by dissolving iron(III) oxide in concentrated `HCl`.

Text Solution

Verified by Experts

The correct Answer is:
C
(A),(B) and (D) given hydrated `FeCl_(3)` ahnd (C ) yield anhydrous `FeCl_(3)` according to the reaction,
`2Fe+3Cl_(2) undersetto(Delta) 2FeCl_(3)("anhydrous")`.
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Knowledge Check

  • Anhydrous feric chloride is prepared by:

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

  • Anhydrous zinc chloride is perpared by heating

    A
    `ZnCl_(2).2H_(2)O`
    B
    `Zn + HgCl_(2)`
    C
    `Zn+Cl_(2)`
    D
    Both (b) and (c )

  • Anhydrous formic acid is prepared by

    A
    heating NaOH with CO at `210^@C` under pressure
    B
    heating glycerol with oxalic acid at high temperature
    C
    catalytic oxidation of ethane in presence of a catalyst
    D
    heating lead formate in a current of hydrogen sulphide.

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    Ferric hydroxide sol is prepared by

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