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What is called double displacement reaction ? Give examples.

Answer»

Solution :Chemical REACTION in which two reactants react by EXCHANGE of ions is CALLED double displacement reaction.
EXAMPLES:
(1) `Na_(2)SO_(4)(aq) +BaCl_(2)(aq) to BaSO_(4)(s)+ 2NaCl(aq)`
(2) `2KBr(aq)+ BaI_(2)(aq) to BaBr_(2)(s)+ 2KI(aq)`


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