Question

an iron nail is dipped in it? Give an example of a double displacement reaction other than the one given ​

Answer 1

Answer:

CuSO4(aq) + Fe(s) ----> FeSO4(aq) + Cu(s) is an e.g. of DOUBLE DISPLACEMENT REACTION.

Answer 2

Examples of double displacement reaction or double decomposition reactions:-

1. $\rm KI \ (aq) + Pb(NO_3)_2 \ (aq) \rightarrow PbI_2 \ (s) + KNO_3 \ (aq)$
2. $\rm AgNO_3 \ (aq) + NaCl \ (aq) \rightarrow AgCl \ (s) + NaNO_3 \ (aq)$
3. $\rm BaSO_4 \ (aq) + Na_2CO_3 \ (aq) \rightarrow BaCO_3 \ (s) + NaSO_4 \ (aq)$

(Given all reactions are precipitation reactions too.)