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Anhydrous ferric chloride is prepared by

Dissolving Fe(OH)3 in concentrated HCl
Dissolving Fe(OH)3 in dilute HCl
Passing dry HCl over heated iron scrap
Passing dry Cl2 gas over heated iron scrap
Additional Questions

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KMnO4 can be prepared from K2MnO4 as per the reaction:

3MnO2–
4
+ H2O ⇌ 2MnO
4
+ MnO2 + 4OH

The reaction can go to completion by removing OH ions by adding

Answer

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Least paramagnetic property is shown by

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The oxidation number of Mn in the product of alkaline oxidative fusion of MnO2 is

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The spin only magnetic moment of Fe2+ ion (in BM) is approximately

Answer
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