JEE Main & Advanced Chemistry Alkali Metals Question Bank Alkali Metals

  • 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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