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  3. Chemistry
  4. An aqueous solution FeSO4 . Al2(SO4 )3 and chrome alum is heated with excess of Na2 O2 and filtered. The materials obtained are

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Q. An aqueous solution $FeSO_4 . Al_2(SO_4 )_3$ and chrome alum is heated with excess of $Na_2 O_2$ and filtered. The materials obtained are

IIT JEEIIT JEE 1996Organic Chemistry – Some Basic Principles and Techniques

Solution:

Yellow filtrate contains $CrO_5$ and brown residue contain $Fe_2 O_3.$