S Block Elements Question 259
Question: Causticization process is used for the preparation of
[CPMT 1985; BHU 1986]
Options:
A) Caustic soda
B) Caustic potash
C) Baryta
D) Slaked lime
Show Answer
Answer:
Correct Answer: A
Solution:
Causticizing process (Gossage process) it is an old process and involves heating of 10% solution of $ Na_2CO_3 $ with a little excess of milk of lime $ Ca{{(OH)}_2} $
$ Na_2CO_3+Ca{{(OH)}_2}\to CaCO_3\downarrow +2NaOH $
BETA
