A chemical A is used for the preparation of washing soda to recover ammonia. 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?

A chemical A is used for the preparation of washing soda to recover am

1.	A chemical A is used for the preparation of washing soda to recover ammonia. 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?
Answer» <html><body><p>`Ca(HCO_(3))_(2)` <br/>CaO <br/>`Ca(OH)_(2)` <br/>`CaCO_(3)` </p>Solution :To recover `NH_(3)` is solvay ammonia soda process, `Ca(OH)_(2)`is <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a>. It is treated with `NH_(<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>)Cl`. <br/> `2NH_(4)Cl+Ca(OH)_(2) to 2NH_(3)+CaCl_(2)+2H_(2)O` <br/> On passing `CO_(2)` through `Ca(OH)_(2)`, lime water, which is colourless, turns milky due to the <a href="https://interviewquestions.tuteehub.com/tag/formation-996531" style="font-weight:bold;" target="_blank" title="Click to know more about FORMATION">FORMATION</a> of `CaCO_(3)`. <br/> `Ca(OH)_(2)CO_(2) to CaCO_(3) darr+H_(2)O` <br/> `Ca(OH)_(2)` is used for white washing also.</body></html>