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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