NEET Chemistry The p-Block Elements (XII) Questions Solved


Bromine is commercially prepared from sea water by displacement reaction 

                       Cl2+Br(aq)  2Cl(aq)+Br2

Br2 gas thus formed is dissolved into solution of Na2CO3 and then pure Br2 is obtained by treatment of the solution with :

 

(a) Ca(OH)2

(b) NaOH

(c) H2SO4 

(d) HI

(c) 

      3Br2(impure)+3Na2CO3(Hot Aq. sol. )  5NaBr+NaBrO3+3CO2                                                  H2SO4                                                   3Br2(Pure)+ Na2SO4                                                                                                

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