Question:
An aqueous solution $FeSO_4 . Al_2(SO_4 )_3$ and chrome alum is heated with excess of $Na_2 0_2$ and filtered. The materials obtained are
An aqueous solution $FeSO_4 . Al_2(SO_4 )_3$ and chrome alum is heated with excess of $Na_2 0_2$ and filtered. The materials obtained are
Updated On: Jun 14, 2022
- a colourless filtrate and a green residue
- a yellow filtrate and a green residue
- a yellow filtrate and a brown residue
- a green filtrate and brown residue
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The Correct Option is C
Solution and Explanation
Yellow filtrate contains $Cr0_5$ and brown residue contain $Fe_2 0_3.$
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