Multiple choice

Which of the following is manufactured by Solvey's process?

  1. Na2CO3

  2. NaOH

  3. CaOCl2

  4. NH3
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A Correct answer
Explanation

The Solvay process (or Solvey process) is primarily used for the industrial manufacture of sodium carbonate (Na₂CO₃, soda ash). This involves the reaction of sodium chloride with ammonia and carbon dioxide to form sodium bicarbonate, which is then heated to produce sodium carbonate. NaOH is typically produced by electrolysis, CaOCl₂ (bleaching powder) from chlorine and lime, and NH₃ by Haber process.

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