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

Concept Videos :-

#7 | 17th Group

Concept Questions :-

group 17 ,preparation and properties
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