Chemistry - s Block Elements Question with Solution | TestHub

A compound$\left(\mathrm{A}\right)$is used in preparation of washing soda to recover ammonia in Solvay's process. When$\mathrm{C}{\mathrm{O}}_2$is bubbled through an aqueous solution of$\left(\mathrm{A}\right)$, the solution turns milky. It is used in white washing due to disinfectant nature. What is the chemical formula of A?