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What is ‘merseberg process’?

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What is ‘merseberg process’?

(a) Ammonium sulphate production

(b) Calcium carbonate production

(c) Sodium carbonate production

(d) Sodium phosphate production

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This intriguing question originated from Inorganic Chemical topic in division Inorganic Chemical Industries of Chemical Technology

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The correct option is (b) Calcium carbonate production

To elaborate: In phosphoric acid production, gypsum is formed as intermediate and it can be reacted with ammonium carbonates to give ammonium sulphate (fertilizer ingredient) and calcium carbonate (merseberg process).

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