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JEE CHEMISTRY MCQ: PRACTICAL CHEMISTRY
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Medium
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Analyzing
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An aqueous solution of and chrome alum is heated with excess of and filtered the materials obtained are
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Correct option: C
A yellow filtrate and a brown residue
The correct answer is C (A yellow filtrate and a brown residue) because the yellow filtrate contains sodium chromate (Na₂CrO₄) formed by oxidation of Cr³⁺, and the brown residue is due to the formation of basic ferric sulfate from the oxidation of FeSO₄.
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