• # question_answer Causticization process is used for the preparation of [CPMT 1985; BHU 1986] A) Caustic soda B) Caustic potash C) Baryta D) Slaked lime

Correct Answer: A

Solution :

Causticizing process (Gossage process) it is an old process and involves heating of 10% solution of $N{{a}_{2}}C{{O}_{3}}$ with a little excess of milk of lime $Ca{{(OH)}_{2}}$ $N{{a}_{2}}C{{O}_{3}}+Ca{{(OH)}_{2}}\to CaC{{O}_{3}}\downarrow +2NaOH$

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