Question

Which of the following is a double displacement reaction.



Pb + CuCl2- PbCl2 + Cu

H2 + CuCl - PbCl2 + Cu
BaCl2 +K2So4 - BaSo4 + Cacl2
Zn + AgNo3 - ZnNo3+ Ag​

Answer 1

Answer:

BaCl2 + K2So4 =BaSo4 + 2KCl

Step-by-step explanation:

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Answer 2

Answer:

ii) Na2 SO4+BaCl 2 →BaSO 4 +2NaCl

Double displacement reactions are those in which ions of the reactants are exchanged to form new compounds as products.

Here option (ii) is the double displacement reaction. K+ ion combine with the Cl- ion and forms KCl whereas the SO4- ion combines with Ba2+ forms BaSO4.

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