Q37 / 160 · WBJEE 2011 · Chemistry

Anhydrous ferric chloride is prepared by

A
Dissolving \(\mathrm{Fe}(\mathrm{OH})_3\) in concentrated \(\mathrm{HCl}\)
B
Dissolving \(\mathrm{Fe}(\mathrm{OH})_3\) in dilute \(\mathrm{HCl}\)
C
Passing dry \(\mathrm{HCl}\) over heated iron scrap
Correct answer
D
Passing dry \(\mathrm{Cl}_2\) gas over heated iron scrap

Solution

Hints: \(2 \mathrm{Fe}+3 \mathrm{Cl}_2 \stackrel{\Delta}{\longrightarrow} 2 \mathrm{FeCl}_3\)

Hence, the correct answer is option: 'D'.

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