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1)

The reactions of Cl gas with cold-dilute and hot -concentrated NaOH in water give sodium salts of two (different)  oxoacids of chlorine, P and Q, respectively. The Cl2 gas reacts with SO2 gas , in the presence of charcoal, to give a product R. R reacts with  white phosphorous to give a  compound s, on hydrolysis, s gives an oxoacid of phosphorous T

 R, S and T respectively, are


A) SO2Cl2,PCl5 and H3PO4

B) SO2Cl2,PCl5 and H3PO3

C) SOCl2,PCl3and H3PO2

D) SOCl2,PCl5and H3PO4

Answer:

Option A

Explanation:

 Plan 2NaOH +Cl2  cold    NaCl+NaOCl+H2O

                                                                          P

6NaOH+3Cl2  hot   5NaCl+NaClO3+3H2O

                                                                Q

HOCl    NaOH     NaOCl

hypochlorous                             P

acid

 Cl2+SO2SO2Cl2

                                             R

 10SO2Cl2+P44PCl5+10SO2

                                               S

PCl5+4H2OH3PO4+5HCl

                                            T