Question

Study the road map for preparation of washing soda and fill up the blanks.

	$$P$$	$$Q$$	$$R$$	$$S$$	$$T$$	$$U$$	$$V$$
(a)	$$CaC{O_3}$$	$$CaO$$	$$Ca{\left( {OH} \right)_2}$$	$$N{H_3}$$	$$N{H_4}OH$$	$$N{H_4}HC{O_3}$$	$$NaHC{O_3}$$
(b)	$$CaC{l_2}$$	$$CaO$$	$$Ca{\left( {OH} \right)_2}$$	$$HCl$$	$$HCl$$	$$NaHC{O_3}$$	$$HCl$$
(c)	$$CaC{l_2}$$	$$CaO$$	$$CaC{O_3}$$	$$N{H_3}$$	$$HCl$$	$$N{H_4}Cl$$	$$NaHC{O_3}$$
(d)	$$CaC{O_3}$$	$$CaO$$	$$Ca{\left( {OH} \right)_2}$$	$$HCl$$	$$C{l_2}$$	$$CaC{l_2}$$	$$NaHC{O_3}$$