S Block Elements Question 122
Question: A compound (A) is used in preparation of washing soda to recover ammonia in Solvay’s process. When $ CO_2 $ . is bubbled through an aqueous solution of (A), the solution turns milky. It is used in white washing due to disinfectant nature. What is the chemical formula of A-
Options:
A) $ Ca{{(HCO_3)}_2} $
B) $ CaO $
C) $ Ca{{(OH)}_2} $
D) $ CaCO_3 $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ NH_3\uparrow \xrightarrow[\begin{smallmatrix} Solvay’s \\ process \end{smallmatrix}]{NH_4Cl}\underset{[A]}{\mathop{Ca{{(OH)}_2}}} $
$ \xrightarrow{CO_2}CaCO_3 $
BETA
