Question

Q10.
which of the following reactions represents a double displacement reaction?
BaCl2(aq) + Na2SO4(aq) →BaSO4(s) + 2NaCl(aq)
2FeSO4(s)->Fe2O3(s)+ S02+SO3[g)
2Pb(NO3)2(8) ► 2PbO(s) + 4NO2(g)+O2(g)
Zn(s) + 2AgNO3(aq) → Zn(NO3)2(aq) + 2Ag(s)​

Answer 1

Answer:

1 wali displacement reaction

Answer 2

Answer:

bacl2 + na2so4 > baso4 + na cl

is the double displacement reaction because two ions are changed among two elements

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