Chemistry · Factors affecting equilibrium: concentration, pressure, temperature, the effect of catalyst, Le Chatelier's principle

Q Type your question One of the chief uses of sodium carbonate has been in the c

Q Type your question One of the chief uses of sodium carbonate has been in the conversion of \( \operatorname{Ca}(O H)_{2}(s) \) to concentrated aqueous solution of NaOH which in turn was used in the manufacture of soap. \( \boldsymbol{C a}(\boldsymbol{O H})_{2}(\boldsymbol{s})+\boldsymbol{2} \boldsymbol{N} \boldsymbol{a}^{+}(\boldsymbol{a q})+ \) \( \boldsymbol{C O}_{3}^{2-}(\boldsymbol{a q}) \rightleftharpoons \boldsymbol{C a C O}_{3}(\boldsymbol{s})+ \) \( \mathbf{2} N \boldsymbol{a}^{+}(\boldsymbol{a} \boldsymbol{q})+\mathbf{2} \boldsymbol{O} \boldsymbol{H}^{-}(\boldsymbol{a} \boldsymbol{q}) \) In \( 1775, \) in order to gain independence from the importation of natural \( N a_{2} C O_{3}, \) the French government offered a prize to anyone who could devise a process to prepare \( N a_{2} C O_{3} \) from NaCl A more economical process but based on the same principle was given by :

  • A. Solvay
  • B. Leblanc
  • C. williamson
  • D. Haber

Step-by-step solution

The Solvay process is a more economical method for producing sodium carbonate from sodium chloride, based on the same underlying principle as the given equilibrium reaction. It uses ammonia and carbon dioxide to produce sodium bicarbonate, which decomposes to sodium carbonate, and it is more efficient than the earlier Leblanc process.
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