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Sindh MDCAT 2022 Chemistry #Chromate Preparation #Transition Elements

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Q.95 Heating a mixture of chromite ore (FeOCr₂O₃) & K₂CO₃ in air is to manufacture:

Verified Answer & Explanation⌄

Correct Answer: D) K₂CrO₄

Concept Explanation

Oxidative roasting of chromite with K₂CO₃ in air converts chromium(III) into soluble potassium chromate, K₂CrO₄.

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