MARKS QUESTIONS:
Using balanced chemical equation explain the differende between a displacement
reaction and double displacement reaction. (CBSE- 2012, 2011)
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Displacement reaction :- it is the chemical reaction in which more reactive element displaces less reactive element from its compound
eg. CUSO4+ Fe _ Fe So4+ Cu
Double displacement reaction :-it is a chemical reaction in which new compounds are formed by exchange of ions between the reactants.
eg. Bacl2(aq) + Na2So4 (aq) _ BaSo4 + 2Nacl(aq)
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